Stem Caster, Swivel Caster, 200 lb Load Rating, 0 to 299 lb, 3 in Wheel Dia., 1 1/4 in Wheel Width, Rubber Wheel/Tread Material, 4 1/4 in Mounting Height, Delrin, 27/32 in x 2-7/32 in Caster Stem Size, Friction Ring, Steel Caster Frame Material, Zinc Plated Frame Finish, No Non-Marking, 1 Number of Wheels