2 Inch Solid Brass Art Deco Style Round Knob (Polished Nickel Finish). Measures 2 inches in diameter with a projection of 3/4 inch. Knobs solid brass design will never rust. Comes complete with mounting hardware with rear mount installation. This knob is available in several sizes and finishes including polished brass, antique brass, oil rubbed bronze, polished chrome, polished nickel, and brushed nickel.