Polyurethane Tread On Plastic Core Wheel, 1000 Lb Load Rating, 1000 To 2999 Lb Load Rating Range, 8 In Wheel Dia., 2 In Wheel Width, Polyurethane Wheel/Tread Material, Hard, 50-60 Shore D, Roller, Standard Tread Shape, 1/2 In For Axle Size, No Includes Spanner Bushing, Plastic Wheel Core Material, Yes Non-Marking, 2 3/16 In Hub Length