Polyurethane Tread on Iron Core Wheel, 1,600 lb Load Rating, 1,000 to 2,999 lb Load Rating Range, 6 in Wheel Dia., 2 1/2 in Wheel Width, Polyurethane Wheel/Tread Material, Firm, 92 Shore A, Precision Ball, Standard Tread Shape, 3/4 in For Axle Size, Not Included Includes Spanner Bushing, Iron Wheel Core Material, Yes Non-Marking, 3 1/4 in Hub Length