Description: Applicable Doors: Work both left and right handed doors due to adjustable handle direction. The keyless door lock with keypad is suitable for exterior or interior doors with thicknesses within 6.5cm/2.56inch, Mechanical & Keyless: Don't install charge batteries. Simple installation and operating principle, providing high level of anti theft performance. Our keypad door lock is not easily pried open which provides you safer living environment. Easily Set Up & Installation: It is easily set and changes the codes. Password be 1 to 11 digits, be used in any order. Durable & Waterproof: The metal digital door lock is made of zinc alloy, surface treatment, hard, waterproof, sunproof, rustproof, anti theft. Widely Used: For wooden fence, courtyard gate, aluminum alloy door, wrought iron doors, and bedroom door. Specification: Material: Zinc Alloy Panel Size(LxH): 4.2cmx14.2cm/1.65inchx5.59inch Package Includes: 1 Mechanical Keyless Door Lock 1 Pack of Accessories 1 Manual Note: Please allow slightly errors due to manual measurement and different monitors.