Swing Bar Lock, 3-7/8 in. Bar Length, Diecast Zinc, Satin Nickel FinishThis diecast swing bar lock boasts a durable zinc construction and sleek satin nickel finish. With a 3 7 8 in. bar length and 2 1 2 in. height, it provides added security and ventilation for swing in doors. Ideal for use as a secondary lock and can be installed out of the reach of children. Includes all necessary mounting hardware and requires a Phillips head screwdriver for installation. For precise dimensions, refer to the line drawing. Features