Details Mini Logo(TM) Bearings are Skate Rated(TM), precision 608 bearings made to Skate One specifications. They have removable rubber shields on both sides of the bearing, a high-speed molded ball retainer, precision ground, and super-finished hardened chromium steel races and balls, and come pre-lubricated with Speed Cream(TM)... twice the performance and half the price you would expect. Skate Rated(TM) and produced by the industry&';s leading bearing manufacturer. Closely monitored quality control to ensure consistent, high performance. Shields on both sides of the bearing for added durability Completely serviceable and lubricated with low viscosity BONES Speed cream Lifetime Warranty against manufacturer&';s defects