- R188 Stainless Steel Ball Bearing
- Replacement Bearing for all fidget spinners that uses size R188
- Size R188 (0.5 in OD x 0.25 in ID x 0.1875 in Thick, Nominal)
- Unlubed for free spinning
These bearings are so nice. The sweet ound is pleasant to the ear. They spin a very long time and are one of the best I have tried in my spinners. And at the sle price even better!