Stem Caster, Swivel Caster with Brake, 120 lb Load Rating, 0 to 299 lb, 3 in Wheel Dia., 13/16 in Wheel Width, Polyurethane Wheel/Tread Material, 3 1/2 in Mounting Height, Plain, 3/8 In. -16 x 1 in Caster Stem Size, Threaded, Steel Caster Frame Material, Zinc Plated Frame Finish, Yes Non-Marking, 1 Number of Wheels