R16-2RS Sealed Ball Bearings 1" x 2" x 1/2" inch Lot of 10 Bearings R16-2RS Sealed Ball Bearings, this is a popular size that could be used in many applications, 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.