Swivel, NSF-Listed Sanitary Plate Caster, Load Rating 150 lb, Swivel Lock Type No Lock Included, Wheel Dia. 4 in, Wheel Width 15/16 in, Wheel/Tread Material Polyolefin, Wheel Core Material Polyolefin, Non-Marking Yes, Number of Wheels 1, Caster Brake Type Side Pedal Brake, Tread Shape Standard