Wheel, Solid Rubber, Wheel Dia 5 In, Wheel Width 1 1/2 In, Load Rating 300 Lb, Hub Width 1 5/8 In, Core Color Black, Tread Color Black, Oilite Wheel Bearings, Fits Axle 1/2, 5/8 In, Wheel Material Rubber, Durometer Range 80 Shore A, Temp Range -20 to 180 Deg F, Resistant To Water,Oil,Most Acids, Hard Tread, Includes Bearing Spanner Bushing