5 x 8 x 2.5 Sealed Ball Bearings Lot of 10 Bearings Lot of 10 Sealed Ball Bearings 5x8x2.5, Bearings are made of Chrome Steel, each bearing are rubber sealed from both sides to protect the bearing from dust or any possible contamination, also bearings are pre-lubricated with grease, Bearings are packed 10 bearings in one plastic tube.