NuTone PB18WHCL Wired Unlighted Round Door Chime Push Button, White One unlighted pushbutton White finish Fits brick molding; Most brick molding has a minimum flat of 1-1/8-Inch Dimension : 13/16-Inch Round NuTone push buttons are available in satin nickel, polished brass, oil-rubbed bronze, antique brass, black, gold, white, and chrome finishes, and in a wide selection of designs for each