16 VXB Skate Black Bearings Yellow Seals - Nylon Cage Set of 16 Bearings (retail packed) Set of 16 Deep Groove Radial Ball Bearings and quality inline Skate 16 bearings, bearings are blacked and bearings have nylon cage that would make them faster. Bearings have 2 Removable yellow Seals and Bearings are made of Chrome Steel, each bearing has 2 Removable yellow Seals to protect the bearing from dust or any possible contamination, also bearings are pre-lubricated with oil.