Feature(may vary by option.)
●Bearings
●Dimensions: 608， 8 x 22 x 7mm(Inner Diameter: 8mm, Outer Diameter: 22mm, Width:7mm)
●Material of Inner and Outer Ring Balls：Chrome steel GCr15 rings
●Material of the Retainer: white Nylon Cage, specially designed, frictionless and easy to clean。
●Material & Color of Seal white rubber seal on one side less friction faster speed!
[8pc Ceramic Abec-11]
Description
Bearings
Dimensions: 608， 8 x 22 x 7mm(Inner Diameter: 8mm, Outer Diameter: 22mm, Width:7mm)
Material of Inner and Outer Ring Balls：Chrome steel GCr15 rings
Material of the Retainer: white Nylon Cage, specially designed, frictionless and easy to clean。
Material & Color of Seal white rubber seal on one side less friction faster speed
Numbers of Balls 7 silicone nitride ceramic si3n4 balls
Feature:Super fast speed,famous as you want,quiet and stable,durable, dust-proof, frictionless,excellent for speed skating player...
for Inline skates bearing Skateboard Scooters。