Polyurethane Tread On Iron Core Wheel, 3400 Lb Load Rating, 3000 To 5999 Lb Load Rating Range, 12 In Wheel Dia., 3 In Wheel Width, Polyurethane Wheel/Tread Material, Firm, 95 Shore A, Roller, Standard Tread Shape, 1 1/2 In For Axle Size, No Includes Spanner Bushing, Iron Wheel Core Material, Yes Non-Marking, 3 1/4 In Hub Length