16 Pack 608-2RS Skateboard Bearings 8x22x7mm, Double Seal and No Grease. Fast Smooth Silent and Long Life, The Same Fit Longboard, Lnline Skates, Scooters etc. 8 Pack 608-2RS Skateboard Bearings 8x22x7mm QUALITY - 100% dimensional testing, 1,000,000 PCS manufacturing experience per year. SEAL - To prevent impurities from entering, is also very easy to disassemble and clean. OPTIMIZATION - No grease (small amount of lubricating oil), no resistance sliding. STRENGTHEN - Enhanced nylon retainer is not easy to damage, Enhance the internal runway axial load (on both sides).