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 Bushing Phenolic Wheel Core Material Yes Non-Marking 3 1/4 in Hub Length