The Bever Products resin center caps are the best upgrade for your fidget spinner! Grab a set and install in seconds to improve your spin game.Adding a solid center grip to your spinner can reduce hand fatigue. Will it fit my spinner? If you have 608 or 188 bearings in your spinner it will fit. Most all spinners on the market use these bearings. Installation Instructions Seat one of the caps inside the bearing to prevent side to side movement. After seating one side you can easily screw in the other side and you're done!
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