Goplus Keyless Digital Machinery Code Keypad Password Security Entry Door Lock New Brand new and high quality;Great for office use, home or apartment Zinc alloy integrative structure;Standard 2 3/8" backset Size of the keypad part: Length:108mm4.25in,Width:43mm(1.73in),Thickness:21mm(0.83in) Size of the back part: Length:108mm4.25in,Width:43mm(1.73in), Thickness:17mm(0.67in) Package including: 1x Door lock 1xInstructions