Choose door knockers with cylinder holes for an all-in-one front door solution that is both stylish and functional. From Australian company and industry leader, Tradco Hardware, they serve the dual purpose of a door knocker and have space for a deadbolt to be installed. Featuring an Art Deco design, they are made of quality brass and then polished and lacquered for a glorious shine that is sure to impress your guests. Continue the style throughout your home with polished brass door handles on all your interior and exterior doors.