Nonmarking Rubber Tread on Plastic Core Wheel 200 lb Load Rating 0 to 299 lb Load Rating Range 3 in Wheel Dia 1 1/4 in Wheel Width Thermoplastic Rubber Wheel/Tread Material Soft 75 Shore A Delrin Standard Tread Shape 1/2 in For Axle Size Not Included Includes Spanner Bushing Plastic Wheel Core Material Yes Non-Marking 1 1/2 in Hub Length