Feature(may vary by option.)

●Bearings
●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 balls

[16pcs Bearing 608]

Description

Bearings
Precision Si3n4 ceramic balls can withstand higher temperatures and the balls will not expand when the bearing is spinning at very high speeds. This helps to ensure faster speeds and longer bearing life.
Use: For most roller skates, speed skates, skateboards universal, suitable for flat flower, braking, brush street, skateboard.
Package included: 608skb032----16pcs/box