Defender Security U 9549 Door Reinforcer 1-3/8-Inch Thick by 2-3/4-Inch Backset 2-1/8-Inch Bore, Brass, Non-Recessed 2-3/8 in. backset x 1-3/8 in. thick door Embossed edge for mortise installation around latchbolt Solic brass construction Easy to install