Caster 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. This item has been restricted from sale in the following state (s): []