Defender Security Door Reinforcer Non-Recessed 1-3/8-Inch Thick by 2-3/8-Inch Backset 2-1/8-Inch Bore, Stainless Steel Helps prevent break-ins Use on wood or metal doors with mortise or drive-in latches Accommodates key-in-knob locksets or deadbolts Easy To Install This reinforcer measures 9-inches tall