1 round rubber fender washers by K&N Engineering. Allows clean installation of fenders etc. with painted surfaces to prevent scratching. Card of 12 packs of 10. mfg# 81-0150
Source: Custom Chrome
1"-diameter round rubber washers have dozens of uses, in addition to the obvious. Allows clean scratch-free, well-cushioned installations. Card of 12 packs of 10.