Caster Wheel 500 lb Load Rating 300 to 999 lb Load Rating Range 8 in Wheel Dia 2 in Wheel Width Rubber Wheel/Tread Material Soft 70 Shore A Roller Standard Tread Shape 1 in For Axle Size Not Included Includes Spanner Bushing Iron Wheel Core Material Yes Non-Marking 2 1/4 in Hub Length