Rigid Single-Flange Track-Wheel Plate Caster Load Rating 3000 lb Swivel Lock Type No Lock Included Wheel Dia 4 1/2 in Wheel Width 2 1/2 in Wheel/Tread Material Steel Wheel Core Material Ductile Iron Non-Marking Yes Number of Wheels 1 Caster Brake Type No Brake Included Tread Shape Single Flange