Pull chain and woodpeckers beak strikes a metal plate making a crisp tapping sound. These door knockers are easy to make from 3/4" stock. Includes FULL SIZE patterns for a redheaded, downey, and flicker woodpecker. Mounting board is 16-1/2"L x 3"W. Order Hardware parts below. Door Knocker Hardware Parts Includes the hard-to-find hardware parts: the strike plate, rolled pin, spring, chain, eyes, screw eyes, and screws. Project plan, wood and wood finish are not included. Order one hardware package for each door knocker you build.