TRB RC (8) 608-2RS 8 x 22 x 7mm Silver Chrome Steel ABEC 5 Races with Removable Black Rubber Seals.
Precision High Speed Inline Skate, Skate and Skateboard Ball Bearing.

*Chrome Steel 52100 (GCr15) ABEC 5 Races
*Nylon Ball Cage to Reduce Weight, Increase Speed
*Oil Lubricated
*Rubber Seals to Help Fight Dirt
*Removable Seals for Maintenance