8, 16 or 32 pieces 608er 2RS MACH1® racing ball bearings / bearings for inline skates example Skateboard Rollerblade wave board and Longboards (Misc.)
An exchange of good 15 year old Abec 1 bearings against this, and you think, you're flying. Printed on the bearings is Abec 15. Therefore, the price is not bad ...