Gallery edition French Design 6-1/2 inch solid brass door knocker with screws. Mainly used for doors 1-3/4 inches thick or smaller. The screws can be cut to use on doors less than 1-3/4 inches. For larger doors use #8-32 machine screws, not included. Finished with a protective clear lacquer coating to add a decorative appearance to doors up to 2 inches thick. Solid brass gives maximum corrosion resistance. Can be personalized by engraving. 2-3/4 inch center to center screw holes. 1-15/16 inch wide by 6-11/16 inch high.