Polyurethane Tread on Aluminum Core Wheel 1 500 lb Load Rating 1 000 to 2 999 lb Load Rating Range 8 in Wheel Dia 2 1/2 in Wheel Width Polyurethane Wheel/Tread Material Firm 98 Shore A Roller Standard Tread Shape 1/2 in For Axle Size Not Included Includes Spanner Bushing Aluminum Wheel Core Material Yes Non-Marking 2 11/16 in Hub Length