Quiet-Roll Friction-Ring Stem Caster, Swivel Caster with Total Lock, 165 lb Load Rating, 0 to 299 lb, 3 in Wheel Dia., 1 1/4 in Wheel Width, Thermoplastic Rubber Wheel/Tread Material, 4 7/16 in Mounting Height, Precision Ball, 27/32 in x 2-1/8 in Caster Stem Size, Friction Ring, Steel Caster Frame Material, Zinc Plated Frame Finish, Yes Non-Marking, 1 Number of Wheels