Phenolic Tread Wheel, 3,500 lb Load Rating, 3,000 to 5,999 lb Load Rating Range, 12 in Wheel Dia., 3 in Wheel Width, Phenolic Wheel/Tread Material, Hard, Rockwell 102 E, Roller, Standard Tread Shape, 1 in For Axle Size, Not Included Includes Spanner...