800 Inline Skate/Roller Hockey/Skateboard Black Color 2 Metal Shields 800 skateboard bearings has 800 Deep Groove Radial Ball Bearings,skateboard bearings are closed with Metal Shields,skateboard 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 is packed 800 bearings.