Rubber Tread on Iron Core 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 85 Shore A Roller Standard Tread Shape 1/2 in For Axle Size Not Included Includes Spanner Bushing Iron Wheel Core Material No Non-Marking 2 7/16 in Hub Length