Solid Rubber Wheel 115 lb Load Rating 0 to 299 lb Load Rating Range 4 in Wheel Dia 1 in Wheel Width Rubber Wheel/Tread Material Soft 85 Shore A Delrin Standard Tread Shape 5/16 in For Axle Size Not Included Includes Spanner Bushing Rubber Wheel Core Material No Non-Marking 1 3/16 in Hub Length