Wicked SUS Rustproof, 4-packWicked SUS bearings are very long lasting and very tough. They are made out of heat treated, rustproof steel for inner and out the ring as well as balls. They are featuring special labyrinth shields and long lasting grease to protect your bearings in all weather conditions against contamination of water, dirt, or sand. Highlight 1 Coated rustproof Highlight 2 Perfect for rain or wet skating Highlight 3 Long lasting bearings Bearing Brand Wicked