The Bever Products metal center caps are the best upgrade for your fidget spinner! Grab a set and install in seconds to improve your spin game. Plastic caps wear out but metal will last forever. Adding a solid center grip to your spinner can reduce hand fatigue. 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!Includes one cap set and one R188 bearing.
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