Stem Caster, Swivel Caster, 300 lb Load Rating, 300 to 999 lb, 5 in Wheel Dia., 1 1/4 in Wheel Width, Polyurethane Wheel/Tread Material, 6 in Mounting Height, Ball, 7/8 in x 2 in Caster Stem Size, Square, Steel Caster Frame Material, Zinc Plated Frame Finish, Yes Non-Marking, 1 Number of Wheels