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