Passage round pocket door latch is easy-to-install. Nothing to mark, nothing to cut. Only requires a screwdriver. Keeps door from warping. Deep cups for easy access. Fits standard 2-1/8" door prep. Backset 2-3/8", adjustable door thickness 1-3/8" to 1-3/4", strike is 1-1/8" x 2-1/4", square corner. Lifetime mechanical warranty and 10 year finish warranty.