Can be used on double hung or sliding windows to provide ventilation with key lock security Supplied with two strikes so window can be locked in either open or closed position Push to lock, key required to unlock Furnished keyed alike for single key operation of multiple guards Attractive Bright Brass finish with screws and two keys 1-3/8 inch x 1-3/4 inch lock plate 1-5/8 inch x 1-3/8 inch strike size 7/16 inch bore hole diameter Carded