Finesun (5 Minutes) R188 Ceramic Bearing 1/4" x 1/2" x 3/16" 10 Si3N4 Ceramic Balls (2 PACK)

Description

R188 Ceramic Ball Bearing is good for DIY your own fidget spinner toys. The 10 Silicon Nitride black ceramic balls allow for a smoother and more stable spinning experience. With this bearing, most fidget spinner can spin 5 minutes at a time with just one whirl. Size: R188 (ID=1/4" OD=1/2" H=3/16") Absolutely this bearing will greatly enhance your spinner.