Ball-Wheel Grip-Neck Stem Caster, Swivel Caster, 75 lb Load Rating, 0 to 299 lb, 2 in Wheel Dia., 1 3/4 in Wheel Width, Polyolefin Wheel/Tread Material, 2 37/64 in Mounting Height, Plain, 5/16 in x 1-1/2 in Caster Stem Size, Grip Neck, Steel Caster...