Caster Wheel, 1,000 lb Load Rating, 1,000 to 2,999 lb Load Rating Range, 6 in Wheel Dia., 2 in Wheel Width, Polyurethane Wheel/Tread Material, Firm, 95 Shore A, Roller, Standard Tread Shape, 1/2 in For Axle Size, Included Includes Spanner Bushing, Cast Iron Wheel Core Material, Yes Non-Marking, 2 7/16 in Hub Length