Caster Wheel 280 lb Load Rating 0 to 299 lb Load Rating Range 8 in Wheel Dia 2 in Wheel Width Semi-Pneumatic Wheel/Tread Material Firm 65-75 Shore A Precision Ball Standard Tread Shape 1/2 in For Axle Size Not Included Includes Spanner Bushing Zinc Plated Wheel Core Material Yes Non-Marking 2 7/16 in Hub Length