Solid Rubber Wheel 155 lb Load Rating 0 to 299 lb Load Rating Range 3 1/2 in Wheel Dia 1 1/4 in Wheel Width Rubber Wheel/Tread Material Soft 85 Shore A Delrin Standard Tread Shape 3/8 in For Axle Size Not Included Includes Spanner Bushing Rubber Wheel Core Material No Non-Marking 1 1/2 in Hub Length