Swivel, Debris- Standard Plate Caster, Load Rating 330 lb, Swivel Lock Type Total Lock, Wheel Dia. 4 15/16 in, Wheel Width 1 3/8 in, Wheel/Tread Material Nylon, Wheel Core Material Nylon, Non-Marking Yes, Number of Wheels 1, Caster Brake Type Total Lock Brake, Tread Shape Standard