608-2RS Sealed Greased Ball Bearings 2 Removable Seals 8mm x 22mm x 7mm Pack of 100 Skateboard/Inline/Skate bearings, work in Rollerblades and even scooters, bearings are Deep Groove Radial Ball Bearings, bearings have 2 Removable Seals,608-2RS Bearings are made of Chrome Steel, each 608-2RS bearing has 2 Removable Seals to protect the bearing from dust or any possible contamination, 608-2RS bearings are pre-lubricated with Grease.