Hubs
From YoYo Wiki
Hubs are the center of the outside part of the yoyo. There are such things as hubstacks where there is a bearing on the hub with a plastic shell over it thus allowing it to be held and spin at the same time.
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Hubs are the center of the outside part of the yoyo. There are such things as hubstacks where there is a bearing on the hub with a plastic shell over it thus allowing it to be held and spin at the same time.
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