Feature(may vary by option.)

●Bearings
●Dimensions: 608RS, 8 x 22 x 7mm (Bore size: 8mm, Outer Diameter: 22mm, Width:7mm)
●Material: Chrome steel (Gcr15) inner outer rings
●Silicon nitride Si3n4 7 ceramic beads
●Retainer Seal Frictionless nylon cage golden Iron Seal on one side

[12 Bearings and 6 Spacer]

Description

Bearings
Features:
1. 7 beads Black Ceramic ball Skates Bearings 608.
2. Precise and High Speed 7 balls innovative design, faster and more stable.
3. Outwards ceramic beads design makes it more convenient for daily cleaning and maintenance than traditional bearings.
4. Stronger supporting ability.
5. Longer life, Amazing Faster & Longer rotating
6Frictionless antidust
7 Anti-rust ,self-lubricated si3n4 black ceramic balls.
8. Excellent for professional speed Skating ,inline skates competition.
9. High precision Si3n4 ceramic balls can bear higher temperature, when the bearing is under very fast speed rotation,the balls wont expand.
So that it can help to ensure a faster speed and longer life of the bearing.
Suited for: Three-wheel speed skating shoes.