{"title":"ホームページ","description":null,"products":[{"product_id":"stepround-fullsize","title":"STEPROUND FULLSIZE","description":"\u003cp\u003eThe full-sized step-round yo-yo, pursuing the standard balance in the #UNBRANDED lineup, has been renewed.\u003c\/p\u003e\n\u003cp\u003eWith a body machined to the extreme limit of thinness and rims to the extreme limit of thickness. Through an aggressive design rivaling titanium models, it achieves an otherworldly balance that combines the maneuverability of a mono-metal with the spin power of a bi-metal.\u003c\/p\u003e\n\u003cp\u003eMaterial: Aluminum\u003c\/p\u003e\n\u003cp\u003eStyle: String Trick (1A)\u003c\/p\u003e\n\u003cp\u003eDiameter: 57mm\u003c\/p\u003e\n\u003cp\u003eWidth: 48mm\u003c\/p\u003e\n\u003cp\u003eWeight: 64g\u003c\/p\u003e\n\u003cp\u003eResponse: Ring Pad\u003c\/p\u003e\n\u003cp\u003eBearing: Size C (Concave comes standard)\u003c\/p\u003e\n\u003cp\u003eAxle: M4-7mm\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e*Due to performance-focused specifications, minute scratches or spots may be visible on the yo-yo surface. Please note that these do not affect functionality. We appreciate your understanding.\u003c\/p\u003e","brand":"#UNBRANDED","offers":[{"title":"Pink","offer_id":48064538280158,"sku":null,"price":69.0,"currency_code":"USD","in_stock":true},{"title":"Silver","offer_id":46347183325406,"sku":"","price":69.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7994\/9534\/files\/SRF-PINK-S1.jpg?v=1775480529"},{"product_id":"round-full-size","title":"ROUND FULLSIZE","description":"\u003ch3 class=\"p1\"\u003eComfort over performance.\u003c\/h3\u003e\n\u003ch3\u003eFlowing curves for your first Round shape.\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eAmidst the rush of new releases and lucky bag announcements, yoyo choices are continuously increasing. In this frantic atmosphere, #UNBRANDED aimed for something different: a comfortable experience where time simply melts away.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eWe stripped away all excess design to leave only the pure Round shape—a seamless, streamlined form. It isn't just simple; it is the ultimate minimalism with absolutely no waste. This curve wasn't created to stand out with unnecessary decorations, but purely to find a shape that feels genuinely relieving the moment you hold it.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThis philosophy lives in its performance as well. For this renewal, we completely reviewed the weight balance to stay true to this concept.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eTo be honest, the ROUND FULLSIZE does not spin as long as modern high-performance models. But that is the point. Loosen the string tension, put on your favorite music, and just throw mindlessly as time flows by. This is a yoyo that fits into your lifestyle, creating a space for you to relax.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eIt is the simplest entry-level Round shape yoyo, created by #UNBRANDED so you can slowly enjoy a new kind of time with your yoyo.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eRecommended for:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e・Beginners to intermediates who want to try a Round shape.\u003c\/p\u003e\n\u003cp\u003e・Those who value a comfortable feel over numerical specs. For players seeking a gentle, flowing tactile sensation and ease of handling.\u003c\/p\u003e\n\u003cp\u003e・Those who want to enjoy tricks at their own pace without being rushed by spin power.\u003c\/p\u003e\n\u003cp\u003e・Those looking for something that fits into their daily life. Perfect for walks or breaks—a tool you can stick with for a long time without pressure.\u003c\/p\u003e\n\u003cp\u003eMaterial: Aluminum\u003c\/p\u003e\n\u003cp\u003eStyle: String Trick (1A)\u003c\/p\u003e\n\u003cp\u003eDiameter: 56mm\u003c\/p\u003e\n\u003cp\u003eWidth: 45mm\u003c\/p\u003e\n\u003cp\u003eWeight: 62g\u003c\/p\u003e\n\u003cp\u003eResponse: Ring Pad\u003c\/p\u003e\n\u003cp\u003eBearing: Size C (Concave comes standard)\u003c\/p\u003e\n\u003cp\u003eAxle: M4-7mm\u003c\/p\u003e\n\u003cp\u003e*Due to the manufacturing process, there may be extremely minute scratches or spots on the surface. Please understand that these do not affect the function or performance of the yoyo.\u003c\/p\u003e","brand":"#UNBRANDED","offers":[{"title":"Haze Blue","offer_id":46623691931870,"sku":"","price":69.0,"currency_code":"USD","in_stock":false},{"title":"Silver","offer_id":47810724888798,"sku":null,"price":69.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7994\/9534\/files\/RF2025-1_cff3d28d-0475-4dfa-8919-25da333f3d01.jpg?v=1766738252"},{"product_id":"stepstraight-fullsize","title":"STEPSTRAIGHT FULLSIZE","description":"\u003ch3 class=\"p1\"\u003e\u003cstrong\u003eControl at will, Feel the Progress.\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003e\u003cmeta charset=\"utf-8\"\u003e\"I practice, but I'm not sure if I'm actually getting better.\"\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eTo transform that vague anxiety into solid confidence, our standard Step-Straight model has been reborn as a smart partner to guide you.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eWith exquisite control and a unique floaty feel, it responds faithfully to your every command. The \"joy of controlling at will\" will let you truly feel your growth.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe step-straight shape effectively distributes weight to the rim, ensuring sufficient stability and spin power. While the movement on the string is surprisingly light, it offers a reassuring sense of presence, letting you clearly feel the spin and position of the yoyo.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eFor this renewal, we pursued the ultimate balance of \"ease of movement\" and \"solid presence.\" By slightly reducing the weight and completely reviewing the weight distribution, we further refined the operational feel. But it isn't just light. At the end of the string, there is a clear presence of where the yoyo is. This allows you to move your fingers without hesitation and land trick after trick. The gap between thought and movement disappears, creating the comfort of tricks connecting in a seamless flow. This is the \"joy of control\" we wanted to deliver.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cmeta charset=\"utf-8\"\u003eNot just focused on raw specs, this is a standard model that reminds you of the pure fun of improving and the sense of accomplishment.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eRecommended for:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e・Beginners to intermediates who want to feel \"improvement\" through practice.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cmeta charset=\"utf-8\"\u003e・Those looking for a responsive feel that moves exactly as intended, rather than a powerful \"unruly beast.\"\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e・Those who prefer a slightly smaller, easy-to-control full-size yoyo.\u003c\/p\u003e\n\u003cp\u003eMaterial: Aluminum\u003c\/p\u003e\n\u003cp\u003eStyle: String Trick (1A)\u003c\/p\u003e\n\u003cp\u003eDiameter: 55mm\u003c\/p\u003e\n\u003cp\u003eWidth: 46mm\u003c\/p\u003e\n\u003cp\u003eWeight: 63.5g\u003c\/p\u003e\n\u003cp\u003eResponse: Ring Pad\u003c\/p\u003e\n\u003cp\u003eBearing: Size C (Concave comes standard)\u003c\/p\u003e\n\u003cp\u003eAxle: M4-7mm\u003c\/p\u003e\n\u003cp\u003e＊Due to the manufacturing process, there may be extremely minute scratches or spots on the surface. Please understand that these do not affect the function or performance of the yoyo.\u003c\/p\u003e","brand":"#UNBRANDED","offers":[{"title":"Dusk Blue","offer_id":47043625222366,"sku":null,"price":69.0,"currency_code":"USD","in_stock":false},{"title":"Silver","offer_id":47823657337054,"sku":null,"price":69.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7994\/9534\/files\/SSF2025-1.jpg?v=1766936372"},{"product_id":"h-profile-fullsize","title":"H-PROFILE FULLSIZE","description":"\u003ch3 class=\"p1\"\u003e\u003cstrong\u003eGentle Strength That Embraces Your Challenge\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"query-text-line ng-star-inserted\"\u003eThat trick you’ve tried countless times. \u003c!----\u003e\u003c!----\u003eThe dream combo you saw on social media.\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003eYou’re so close to nailing it, but at the very last second, it loses power and tilts. \u003c!----\u003e\u003c!----\u003eIs it a lack of practice, or is it the yo-yo’s performance? \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp class=\"query-text-line ng-star-inserted\"\u003eOne more throw. Even when it didn't work, you threw it again. Before you knew it, an hour had passed just doing that.\u003c!----\u003e\u003c!----\u003e\u003cmeta charset=\"utf-8\"\u003eThat’s just how yo-yoing is. Whether you want to get better or you just want to keep throwing—without even knowing why, your hands just keep moving.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eTo support your \"one more throw\" until the very end, #UNBRANDED created the H-PROFILE FULLSIZE.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eThe concept is \"Gentle Strength That Embraces Your Challenge.\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe powerful spin of the H-profile will never let your \"one more throw\" down. Because the yo-yo doesn't tilt, you can keep throwing. And because you can keep throwing, what you couldn't do yesterday becomes possible today.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-pre-wrap leading-[1.7]\"\u003ePower or feeling? You no longer have to compromise. We have combined the traditional H-profile, a staple since the dawn of metal yo-yos, with overwhelming spin power and the comfortable, soft feel of a round shape—all in a single body. This yo-yo is also highly recommended for players looking to make their bi-metal debut in the future.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eOverwhelming Spin Power to Support \"One More Throw\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe H-profile design, which efficiently distributes weight to the outer rim, generates a powerful spin that you wouldn't expect from its appearance. Its persistent, rock-solid stability allows you to execute those long combos you saw on social media until the very end, turning your challenges into success.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eA Comfortable Feel Inherited from Round Shapes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eContrary to its overwhelming spin power, it feels remarkably soft in the hand. The meticulously designed round profile offers a comfortable grip and gently absorbs the impact of catches. Your hands won't get tired, leaving you with no reason to stop practicing. The peace of mind that \"it doesn't hurt even if you fail\" propels you to challenge the next level of tricks.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-pre-wrap leading-[1.7]\"\u003eWhat you couldn't do yesterday becomes possible today.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-pre-wrap leading-[1.7]\"\u003eIn that exact moment, the H-PROFILE FULLSIZE transforms into your ultimate companion.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eUpdates from the Previous Version\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eWeight increased from 66g to 67g. This boosts the spin's persistence and power during the final stages of long combos.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eRecommended for:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• \u003cmeta charset=\"utf-8\"\u003eBeginner to intermediate players who want to finally land those long combos they used to give up on due to a lack of sleep time.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cmeta charset=\"utf-8\"\u003e• \u003cmeta charset=\"utf-8\"\u003ePlayers who are curious about bi-metal yo-yos but want to establish their style with a monometal first.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• \u003cmeta charset=\"utf-8\"\u003ePlayers looking for both the absolute stability of an H-profile and a gentle feel that won't cause fatigue even during long practice sessions.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eSPECIFICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eMaterial: Aluminum\u003c\/p\u003e\n\u003cp\u003eStyle: String Trick (1A)\u003c\/p\u003e\n\u003cp\u003eDiameter: 56mm\u003c\/p\u003e\n\u003cp\u003eWidth: 48mm\u003c\/p\u003e\n\u003cp\u003eWeight: 67g\u003c\/p\u003e\n\u003cp\u003eResponse: Pad\u003c\/p\u003e\n\u003cp\u003eBearing: Size C Bearing (Concave by default)\u003c\/p\u003e\n\u003cp\u003eAxle: M4 x 7mm\u003c\/p\u003e\n\u003cp\u003e*Due to manufacturing specifications, extremely minor scratches or spots may be visible on the surface of the yo-yo. However, these do not affect performance. Thank you for your understanding.\u003c\/p\u003e\n\u003cp\u003e*To maximize performance, a shorter axle design is utilized. Please be careful when assembling; gently pressing both halves of the body together with both hands while turning will ensure a smooth assembly.\u003c\/p\u003e","brand":"#UNBRANDED","offers":[{"title":"SAGE GREEN","offer_id":47501318160606,"sku":null,"price":69.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7994\/9534\/files\/HPF-SG-1.jpg?v=1778928443"},{"product_id":"flatrim-fullsize","title":"FLATRIM FULLSIZE","description":"\u003ch3 class=\"p1\"\u003e\u003cstrong\u003eThe Luxury of Spin Power. The Simplest Answer to Improvement.\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"5\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"5\"\u003eTo you, who yearns to get better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003eWhen challenging yourself with new tricks, do you ever find yourself thinking:\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003e\"If only it would spin a little longer, I could calmly land this mount.\"\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003e\"If I had that high-end yo-yo the pros use, maybe I could do it too.\"\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003eThat feeling is not a mistake. In fact, beginners and intermediate players aiming to improve are the ones who need \"Spin Power\" the most.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eWhen tracing the steps of an unfamiliar trick, your finger movements naturally become cautious and prone to pausing. If you are using a yo-yo with weak spin, you panic, thinking, \"I have to move before it dies,\" which often leads to mistakes. Conversely, if the yo-yo keeps spinning powerfully, you gain the \"leeway\" to check your string placement at your own pace without rushing.\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003eIn other words, gaining long-lasting \"Spin Power\" is synonymous with gaining the \"mental room\" to think calmly during a trick.\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"9\"\u003eAchieving Spin Power Rivaling Bi-Metals with a Mono-Metal Flat Rim Shape\u003c\/b\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"9\"\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\"\u003e\"To get long spin times, I have to buy an expensive bi-metal yo-yo.\"\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\"\u003e\u0026nbsp;This is a common belief, but there is a design approach that achieves this with mono-metal.\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003eThat is the adoption of the \"Flat Rim\" shape.\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003e\u0026nbsp;By designing the body's rim to be extremely flat and thick, we can concentrate weight at the very edge of the yo-yo's diameter.\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003eThis shape is the most efficient and functional design for maximizing the \"Moment of Inertia\" that creates rotational persistence.\u003c\/p\u003e\n\u003cp data-path-to-node=\"11\"\u003eAs a result, despite being a mono-metal yo-yo, it possesses overwhelming spin power that comes close to bi-metal models.\u003c\/p\u003e\n\u003cp data-path-to-node=\"12\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"12\"\u003eThe confidence that \"It's Still Spinning\" accelerates your progress.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"12\"\u003eThe intense spin power created by the Flat Rim gives you the peace of mind that \"it's still spinning, so I'm okay.\"\u003c\/p\u003e\n\u003cp data-path-to-node=\"12\"\u003eThis removes the panic from your fingertips and grants you the \"leeway\" to surely land tricks. We know you want to stack up as many \"I did it!\" moments as possible in your limited time. This yo-yo is the partner that most efficiently supports your busy daily practice.\u003c\/p\u003e\n\u003cp data-path-to-node=\"13\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"13\"\u003eRecommended for:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"14\"\u003e\n\u003cli\u003ePlayers who want to focus on mastering tricks.\u003c\/li\u003e\n\u003cli\u003eThose who often fail during long combos or new trick practice because the spin dies out mid-trick.\u003c\/li\u003e\n\u003cli\u003eThose who want spin power but are afraid of dinging an expensive bi-metal yo-yo, preventing them from practicing fully.\u003cb data-index-in-node=\"0\" data-path-to-node=\"14,1,0\"\u003e\u003c\/b\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMaterial: Aluminum\u003c\/p\u003e\n\u003cp\u003eStyle: String Trick (1A)\u003c\/p\u003e\n\u003cp\u003eDiameter: 56.5mm\u003c\/p\u003e\n\u003cp\u003eWidth: 50mm\u003c\/p\u003e\n\u003cp\u003eWeight: 67g\u003c\/p\u003e\n\u003cp\u003eResponse: Ring Pad\u003c\/p\u003e\n\u003cp\u003eBearing: Size C (Concave type standard)\u003c\/p\u003e\n\u003cp\u003eAxle: M4-8mm\u003c\/p\u003e\n\u003cp\u003e*Due to performance-focused manufacturing, very minute scratches or spots may be visible on the yo-yo surface. Please adhere that these do not affect function or performance.\u003c\/p\u003e","brand":"#UNBRANDED","offers":[{"title":"Silver","offer_id":47884861505758,"sku":null,"price":69.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7994\/9534\/files\/FRF-1.jpg?v=1770446270"},{"product_id":"stepround-undersize","title":"STEPROUND UNDERSIZE","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e \u003cmeta content=\"width=device-width, initial-scale=1.0\" name=\"viewport\"\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n        \/* Simple style compatible with Shopify defaults *\/\n        .product-description {\n            line-height: 1.6;\n            color: #333;\n        }\n\n        .product-description h3 {\n            font-size: 1.25em;\n            margin-top: 2em;\n            margin-bottom: 1em;\n            font-weight: bold;\n        }\n\n        .product-description p {\n            margin-bottom: 1em;\n        }\n\n        .product-description ul {\n            margin-bottom: 1em;\n            padding-left: 1.5em;\n        }\n\n        \/* Accordion settings *\/\n        .details-accordion {\n            border-top: 1px solid #e8e8e8;\n            border-bottom: 1px solid #e8e8e8;\n            margin: 2em 0;\n        }\n\n        .details-summary {\n            list-style: none;\n            cursor: pointer;\n            padding: 1em 0;\n            display: flex;\n            justify-content: space-between;\n            align-items: center;\n            font-weight: bold;\n        }\n\n        .details-summary::-webkit-details-marker {\n            display: none;\n        }\n\n        .details-summary::after {\n            content: '+';\n            font-size: 1.5em;\n            font-weight: normal;\n            transition: transform 0.3s ease;\n        }\n\n        details[open] .details-summary::after {\n            transform: rotate(45deg);\n            content: '+'; \n        }\n\n        .details-content {\n            padding-bottom: 1.5em;\n            font-size: 1em;\n        }\n\n        \/* Specs section *\/\n        .specs {\n            margin-top: 2em;\n        }\n\n        .specs-title {\n            font-weight: bold;\n            display: block;\n            margin-bottom: 0.5em;\n        }\n\n        .specs-note {\n            font-size: 0.9em;\n            color: #666;\n            margin-top: 1em;\n        }\n    \u003c\/style\u003e\n\n\u003cdiv class=\"product-description\"\u003e\n    \u003ch2\u003e\u003cstrong\u003eJust made smaller.\u003c\/strong\u003e\u003c\/h2\u003e\n    \u003ch3\u003e\u003cstrong\u003eUndersize specs, full-size performance.\u003c\/strong\u003e\u003c\/h3\u003e\n    \u003cp\u003eYou’ve started to fluidly connect your own combos with a full-size yo-yo. Yo-yoing is fun. You want to keep it with you more often. If only it fit in your pocket... The desire for an undersize yo-yo naturally grows from that feeling.\u003c\/p\u003e\n\n    \u003cp\u003eHowever, when you actually throw a smaller yo-yo, your usual tricks don't feel the same. The spin is insufficient, mounts are unstable, and binds don't snap back. You haven’t changed, but just by switching yo-yos, that \"flow\" disappears. Eventually, you go back to full-size, and the smaller yo-yo ends up sitting on the shelf.\u003c\/p\u003e\n\n    \u003cp\u003e\u003cstrong\u003eSTEPROUND UNDERSIZE was designed to change that experience.\u003c\/strong\u003e\u003c\/p\u003e\n\n    \u003cp\u003eWe took the high rotational efficiency of the \"Step-Round Shape\" established with the STEPROUND FULLSIZE and brought it directly to the undersize format.\u003c\/p\u003e\n\n    \u003cp\u003eSmall yo-yos inevitably lose spinning power. Traditionally, the only way to compensate was to make the rims heavier, resulting in \"heavy yet sluggish\" undersize yo-yos that still wouldn't spin long enough.\u003c\/p\u003e\n\n    \u003cp\u003e\u003cstrong\u003eSTEPROUND UNDERSIZE changes the approach.\u003c\/strong\u003e\u003c\/p\u003e\n\n    \u003cp\u003eInstead of relying on pure weight for spin power, we secured it through efficient weight distribution and by increasing the initial RPM (rotational speed) of the throw. Because Size D bearings have a smaller outer diameter, the string wraps around them more times for the same length of string, resulting in higher RPMs upon release. Furthermore, the combination of a lightweight Size D bearing and an M3 axle significantly reduces the weight of the center section. By making the rims streamlined—rather than pushing them too far to the extreme edge—we achieved a balance between agility and persistent spin. With a slightly wide 44mm width, it remains easy to catch on the string while maintaining sufficient rim weight.\u003c\/p\u003e\n\n    \u003cp\u003eThe result is a light release from your fingers the moment you throw. The yo-yo follows your movements faithfully during direction changes. Yet, the spin doesn’t die out even at the end of a long combo.\u003c\/p\u003e\n\n    \u003cp\u003e\u003cstrong\u003eThe only thing that changed is the size. The satisfaction of the play remains.\u003c\/strong\u003e\u003c\/p\u003e\n\n    \u003cp\u003eBeyond that, you get the unique benefits of an undersize. It glides through the tight gaps of complex string tricks with ease. It offers the freedom of carrying a yo-yo in your pocket anytime, anywhere. The \"nimble fun\" that full-size yo-yos can't provide is now built on a foundation of reliability.\u003c\/p\u003e\n\n    \u003cp\u003eThere is nothing to fear.\u003c\/p\u003e\n\n    \u003cp\u003eYour ideal relationship with the yo-yo simply continues.\u003c\/p\u003e\n\n    \u003cp\u003eHighly recommended for your first undersize experience.\u003c\/p\u003e\n\n    \u003cp\u003e\u003cstrong\u003eRecommended for:\u003c\/strong\u003e\u003c\/p\u003e\n    \u003cul\u003e\n        \u003cli\u003ePlayers who have mastered combos on full-size yo-yos and are curious about undersize models.\u003c\/li\u003e\n        \u003cli\u003eThose who have tried undersize yo-yos before but weren't satisfied with the feeling.\u003c\/li\u003e\n        \u003cli\u003eAnyone looking for a yo-yo that fits comfortably in a pocket for everyday carry.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003c!-- Details Section: Deep Dive --\u003e\n    \u003cdetails class=\"details-accordion\"\u003e\n        \u003csummary class=\"details-summary\"\u003eA Deeper Look: How we achieved \"Just made smaller\"\u003c\/summary\u003e\n        \u003cdiv class=\"details-content\"\u003e\n            \u003cp\u003eWhat determines a yo-yo's spin power and stability? Many believe it is the \"Moment of Inertia.\" The heavier the outer rim, the greater the moment of inertia, leading to a more stable spin. This is a physically correct fact. That is why traditional undersize yo-yos tried to gain moment of inertia by making the rims extremely heavy.\u003c\/p\u003e\n\n            \u003cp\u003eHowever, this design has a trade-off. As the rim gets heavier, the total weight of the yo-yo increases, making the throw feel sluggish. During direction changes or hops, that dull inertia gets in the way. It’s a contradiction: you chose a small yo-yo for mobility, yet it became harder to move. Moreover, the moment of inertia gained through weight can never truly rival a full-size yo-yo due to the smaller diameter. This is how that unsatisfactory feeling of \"heavy yet weak spin\" was born.\u003c\/p\u003e\n\n            \u003cp\u003eSTEPROUND UNDERSIZE approached this problem from a different angle.\u003c\/p\u003e\n\n            \u003cp\u003eTo describe a yo-yo’s spin strength accurately in physics, you look at its \"Angular Momentum.\" Angular momentum is defined as $Moment\\ of\\ Inertia \\times Angular\\ Velocity\\ (RPM)$. In other words, the persistence of the spin is not determined by the moment of inertia alone; it is the product of it and the rotational speed.\u003c\/p\u003e\n\n            \u003cp\u003eTraditional undersize designs tried to brute-force the left side of this equation—the \"Moment of Inertia\"—through weight. STEPROUND UNDERSIZE takes a different approach: \"Maximizing the moment of inertia through efficient weight distribution\" while \"structurally increasing the initial RPM.\" We tackle both sides of the multiplication simultaneously.\u003c\/p\u003e\n\n            \u003cp\u003eFirst, the mechanism to increase RPM: The key is the Size D bearing. Because its outer diameter is smaller than a standard Size C bearing, the string wraps around it more times. Before the same length of string fully unwinds, the yo-yo rotates more frequently. This means that even with the same throwing force, the initial rotational speed is structurally higher. This is a pure advantage in RPM gained through design alone.\u003c\/p\u003e\n\n            \u003cp\u003eNext, efficient weight distribution: By combining the lightweight Size D bearing with an M3 axle, we have significantly reduced the mass of the center section. Compared to a standard Size C bearing and M4 axle, the mass around the axis of rotation is much lighter. The crucial point here is that by lightening the center, we can allocate a higher percentage of the total weight to the outer rims without increasing the overall weight of the yo-yo. It’s not about adding weight; it’s about optimizing the distribution of the weight you already have.\u003c\/p\u003e\n\n            \u003cp\u003eThe Size D bearing boosts the RPM, while the D bearing and M3 axle lighten the center to maximize the efficiency of the moment of inertia. A single design choice contributes to both factors of the equation at once. This is the core of the STEPROUND UNDERSIZE design.\u003c\/p\u003e\n\n            \u003cp\u003eThis covers the approach to \"securing spin power.\" However, strong spin alone isn't enough for an undersize; what’s required is \"ease of movement.\"\u003c\/p\u003e\n\n            \u003cp\u003eInstead of simply pushing all weight to the extreme edge, we adopted a streamlined rim shape. This ensures a high moment of inertia while preventing the yo-yo's overall center of gravity from feeling unbalanced. It retains a \"lightness\" that follows the player's finger movements during direction changes. We intentionally balanced spin power with maneuverability rather than maximizing one at the total expense of the other.\u003c\/p\u003e\n\n            \u003cp\u003eFinally, the 44mm width: By designing it slightly wider than typical undersize yo-yos, we increased the volume and weight of the rim that can be placed on the outer edge. This compensates for the reduced diameter, allowing the moment of inertia to remain at a high level for an undersize model.\u003c\/p\u003e\n\n            \u003cp\u003eTo summarize: Based on the high-efficiency Step-Round shape, the Size D bearing structurally increases initial RPM. The D bearing and M3 axle drastically lighten the center, optimizing weight distribution to maximize the moment of inertia. The streamlined rims balance agility with spin persistence, and the slightly wider design secures necessary rim weight.\u003c\/p\u003e\n\n            \u003cp\u003e\"Efficient Weight Distribution × High RPM.\" Instead of forcing a spin through weight, we optimized both sides of the equation through design. This is the full picture of how we broke the traditional undersize dilemma of \"heavy yet sluggish\" to achieve a yo-yo that \"spins fast, moves well, and lasts long.\"\u003c\/p\u003e\n\n            \u003cp\u003eThe specs are undersize, but the performance is full-size. \"Just made smaller\" is the crystallization of this entire design philosophy.\u003c\/p\u003e\n        \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdiv class=\"specs\"\u003e\n        \u003cspan class=\"specs-title\"\u003eSpecifications\u003c\/span\u003e\n        \u003cp\u003eMaterial: Aluminum\u003cbr\u003e\n        Style: String Trick (1A)\u003cbr\u003e\n        Diameter: 51.5mm\u003cbr\u003e\n        Width: 44mm\u003cbr\u003e\n        Weight: 61.5g\u003cbr\u003e\n        Response: Ring Pad (18mm OD)\u003cbr\u003e\n        Bearing: Size D Bearing (Concave by default)\u003cbr\u003e\n        Axle: M3-8mm\u003c\/p\u003e\n        \u003cp class=\"specs-note\"\u003e*Due to performance specifications, minor scratches or spots may be visible on the surface of the yo-yo. These do not affect functionality. Thank you for your understanding.\u003c\/p\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e","brand":"#UNBRANDED","offers":[{"title":"Moss Black","offer_id":48188374417630,"sku":null,"price":69.0,"currency_code":"USD","in_stock":true},{"title":"Faded Rose","offer_id":48039159791838,"sku":null,"price":69.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7994\/9534\/files\/UB2-B-1.jpg?v=1777620034"}],"url":"https:\/\/unbrandedyoyo.myshopify.com\/en\/collections\/frontpage.oembed","provider":"#UNBRANDED","version":"1.0","type":"link"}