Nonmarking Rubber Tread on Plastic Core Wheel 155 lb Load Rating 0 to 299 lb Load Rating Range 3 1/2 in Wheel Dia 1 1/4 in Wheel Width Thermoplastic Rubber Wheel/Tread Material Soft 85 Shore A Precision Ball Standard Tread Shape 3/8 in For Axle Size Not Included Includes Spanner Bushing Plastic Wheel Core Material Yes Non-Marking 1 5/8 in Hub Length