●【DIMENSIONS】Adjustable latch to fit the two most common back sets in the U.S. (2-3/4-inch and 2-3/8-inch). Door thickness: 1.37” to 1.75”. ●【EASY TO INSTALL】Mounting screws and instruction are included. Easy installation requiring only a screwdriver. ●【PACKAGE INCLUDES】Pack of 4 Door knob kits. Strike plates and screws included. 4PCS Door stoppers as a gift. ●【KEYLESS DESIGN】 Locks from the inside with a turn button and unlocks from the outside with a coin or flat piece of metal. ●【DURABLE】This black finish is captivating, resistant to smudging and offers strong durability. complements a wide selection of interior design styles including craftsman, country and mountain.