, 2 1/2 in Wheel Width, Rubber Wheel/Tread Material, Soft, 70 Shore A, Roller, Standard Tread Shape, 1 in For Axle Size, Not Included Includes Spanner Bushing, Iron Wheel Core Material, Yes Non-Marking, 3 1/4 in Hub Length.Caster Wheel, 900 lb Load Rating, 300 to 999 lb Load Rating Range, 12 in Wheel Dia.