6700ZZ Shielded Ball Bearings Lot of 10 Bearings Pack of 10 6700ZZ Ball Bearings, 6700ZZ is a popular size that could be used in many RC Cars and Trucks, 6700ZZ Bearings are made of Chrome Steel, 6700ZZ bearings are pre-lubricated with grease, each 6700ZZ bearing has 2 metal shields to protect the bearing from dust or any possible contamination, 6700ZZ Bearings are packed 10 bearings in one plastic tube.