Swivel, Plate Caster, Load Rating 325 lb, Swivel Lock Type No Lock Included, Wheel Dia. 4 in, Wheel Width 1 1/4 in, Wheel/Tread Material Polyurethane, Wheel Core Material Polyolefin, Non-Marking Yes, Number of Wheels 1, Caster Brake Type No Brake, Tread Shape Standard