1 1/2 Inch Solid Brass Round Button Knob (Polished Brass Finish) - measures 1 1/2 inch in diameter with a projection of 1 3/10 inch. This comes complete with the mounting hardware. This product comes as an un-lacquered natural brass and it will patina over time. A high strength lacquer coating is available upon request. Available in several different finishes including polished brass, antique brass, and oil rubbed bronze.