1 Inch Solid Brass Round Knob (Polished Brass Finish). Measures 1 inch in diameter with a projection of 1 inch. Comes complete with 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 sizes and finishes including polished brass, antique brass, oil rubbed bronze, polished chrome, brushed nickel, and flat black.