General Purpose Friction-Ring Stem Caster, Swivel Caster, 125 lb Load Rating, 0 to 299 lb, 3 in Wheel Dia., 1 in Wheel Width, Polyurethane Wheel/Tread Material, 3 5/8 in Mounting Height, Plain, 7/16 in x 1-3/8 in Caster Stem Size, Friction Ring, Steel Caster Frame Material, Zinc Plated Frame Finish, Yes Non-Marking, 1 Number of Wheels