16 inline/Rollerblade Skate Bearing Shielded16 Inline Skate Bearings works with Roller Hockey Too Black Color 2 Metal Shields Set of 16 skate bearings,the set has 16 Deep Groove Radial Ball Bearings,skate bearings are closed with Metal Shields,skate bearings are made from high strength Chrome Steel,each skateboard bearings has 2 Metal Shields to protect the rolling elements from dust or any possible contamination,also our skateboard bearings are pre lubricated with oil, our skateboard Bearings