Polyurethane Tread on Iron Core Wheel 2 420 lb Load Rating 1 000 to 2 999 lb Load Rating Range 8 in Wheel Dia 1 3/4 in Wheel Width Polyurethane Wheel/Tread Material Firm 90 Shore A Roller Standard Tread Shape 1/2 in For Axle Size Not Included Includes Spanner Bushing Iron Wheel Core Material Yes Non-Marking 2 3/8 in Hub Length