16 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 of 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 set are packed 16 bearings.