Features: 1.Keyless mechanical door lock with password keyboard, made of high?quality zinc alloy, durable and safer. 2.Users can set a 4?7 digits password, no key is required to unlock. There is only one set of passwords, and the numbers cannot be repeated. 3.The C button is the reset button. When the password is entered incorrectly, please press the C button first, and then enter the correct password. Other keys except C key can be set as password. 4.Sensitive password keys, easy to operate. Comes with screw pack and English manual, convenient to install. 5.Suitable for office doors, interior doors, rental doors, composite doors or any place where keys are not suitable. Specification: Condition: Brand New_x000D_ Item Type: Smart Door Lock_x000D_ Panel Material: Zinc Alloy_x000D_ Color: As picture shown_x000D_ Password Length: 4-7 Digits_x000D_ Applicable Door Thickness: Approx. 30-60mm/1.2-2.4in_x000D_ Applicable Type: Indoor and Outdoor Doors_x000D_ Features: Waterproof, No Battery Required_x000D_ Bolts Center Distance: Standard 60mm/2.4in PackageList: 1 x Front Panel1 x Rear Panel1 x Installation Accessory Pack1 x Lock Box1 x Lock Catch2 x Rubber Pad1 x 2.4in Lock Bolts1 x Instruction