HEAVY-DUTY CASTERS WHEELS: The heavy duty casters wheels are made of high-quality polyurethane molds, bright galvanized steel wheels and yokes. The caster wheels have strong abrasion resistance, are not easy to rust, and have strong shock absorption and buffering performance, which increases the service life. WHEEL SIZE: Industrial caster wheel diameter: 4,5,6,8 inches, width: 2 inches,with ¾’ roller bearing, ID wrench bushing. FOUR caster wheelS can support load 3200lb, strong load-bearing capacity, so you can buy and use with confidence. EASY TO USE: :The Heavy Duty Polyurethane wheels structure is stable and the wheels run smoothly, which completely bid farewell to the annoying noise of traditional shopping wheels that are easy to jam and make loud noises. WIDE RANGE OF USES: :The Wheels can be easily to replace and used. You can replace at Swivel Casters, such as pallet trucks, inventory carts, trolleys, platform carts,shopping carts, furniture, luggage carts, workbenches, and many others OUR GURANTEE FOR YOU:We do our best to ensure that each of our products arrive in the best quality and condition.If you are not completely satisfied with your purchase or the product is damaged in transit, broken, please contact us promptly.We will solve your problem promptly. Number of items: 15