5" X 2" Rigid Caster Heavy Duty Polyurethane Wheel on Steel Hub 1000lb Each 5" X 2" Rigid Caster Heavy Duty Polyurethane Wheel on Steel Hub 1000lb Each 3/4" Roller Bearing with 1/2" ID Bushing (Manufacture will provide zerk fitting in the wheel or axle) Material: Heavy Duty Polyurethane on Steel Capacity: 1000lbs