Matte black, single cylinder deadbolt, features a strong, all metal chassis to protect against attacks executed by kick-in, lock pick, crowbar, saw, wrench or hammer, intended for use on exterior doors where firm resistance is needed, operates with a key on the outside & a thumb turn on the inside, designed to fit existing pre-drilled holes on most standard doors & includes an assortment of strike plates to match your door's recess, warm silver tones of matte black complement light & dark wood grains in addition to a broad spectrum of colors.