Bolt-In Stem Caster with Square Stem, Swivel Caster, 140 lb Load Rating, 0 to 299 lb, 4 in Wheel Dia., 1 in Wheel Width, Rubber Wheel/Tread Material, 4 13/16 in Mounting Height, Plain, 3/4 in x 2 in Caster Stem Size, Square, Steel Caster Frame...