【Heavy-Duty】:  Casters wheel are made of High-quality Polyurethane(Polyolefin Core) and bright galvanized steel plate. The Heavy Duty Caster Wheel have strong abrasion resistance, and have strong shock absorption and buffering performance, which increases the service life.

【4 inch Caster 】: CasterR WHEEL SIZE diameter: 4 inches, width: 2 inches, Hub Length: 2-7/16,with ¾”roller bearing, ½ ID wrench bushing. top plate: 4x 4-1/2, total height: 6-1/2. One 4 inch wheel can support load 600Lb, set of four Casterr wheel can support load 2400lb.

【High Resistance】The newly upgraded wheels for high-grade material polyurethane, The heavy duty casters wheels can withstand most chemicals, solvents, acids and oils, without fear of any environment, giving you a perfect.

【Widely Use】: Red plate caster have a wide range of uses, such as pallet trucks, inventory carts, trolleys, Toolbox, Workbench, Industrial Equipment and many other uses. store fixtures, and more. Also High-quality Caster wheel can drastically help you improve your Heavy Duty Caster rolling performance in the right environments.