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To this day, yo-yo is just not only a toy but also a activities like extreme sports. This design is not for a child but an expert of yo-yo. Maybe the people who can really understand it is not so many. But the characteristic can be understood easy.At first,it can change shape as many style, it has a great effect of feeling to the hand of players, and furthermore, the shape concerns the weight of yo-yo and the drag in the air.Second,it's more important to the concept,the new "hubstack" system,meaning the main part and another part can spin apart at the same time, this change can make a lot of fun, e.g. holding yo-yo in hand but it sill spin.
National Taiwan University
of Science and Technology
Taipei, Taiwan
KE,JHIH-SIANG
National Taiwan University
of Science and Technology
Taipei, Taiwan