Rollerskating & Skateboarding
Abec-11 608 Ceramic Ball Bearing Roller Skates Inline Speed Skating Inline Skate Shoes 7 Ball Ceramic Skate Bearing
ball bearing Specification: 608Z (single sided metal seal); Size: 8*22*7mm Bearing material: silicon nitride black ceramic ball + special grade steel inner and outer ring Bearing accuracy: ABEC-11 Number of balls: 7 silicon nitride black ceramic...
https://www.bizrate.co.uk/rollerskating-skateboarding/abec-11-608-ceramic-ball-bearing-oid39534163560.html