Rubber Tread On Aluminum Core Wheel, 880 Lb Load Rating, 300 To 999 Lb Load Rating Range, 6 1/4 In Wheel Dia., 2 In Wheel Width, Rubber Wheel/Tread Material, Soft, 65 Shore A, Precision Ball, Standard Tread Shape, 3/4 In For Axle Size, No Includes Spanner Bushing, Aluminum Wheel Core Material, No Non-Marking, 2 3/8 In Hub Length