2 Rigid, 2 Swivel, Standard Plate Caster Kit, Load Rating 280 lb, Swivel Lock Type No Lock Included, Wheel Dia. 5 in, Wheel Width 2 in, Wheel/Tread Material Polyolefin, Wheel Core Material Plastic, Non-Marking Yes, Number of Wheels 1, Caster Brake Type Side Pedal Brake, Tread Shape Standard, Package Quantity 4