【High-Quality Alloy Material】: The overall lock shell of this anti-theft door lock is made of high-quality alloy lock shell, waterproof and rust-proof, chrome-plated surface, exquisite workmanship and durable. 【Keyless Entry】: This keyless entry door lock has a 2-4 digit (no repetition) password length to ensure home security. You no longer need to carry a key, and you can easily unlock it by entering the password, and experience the freedom of keyless convenience. 【Safe and Durable】: The digital door combination lock is processed through a special cold rail process and hard cast, making it more effective in resisting violent damage. 【Easy to Install】: This combination door lock does not require keys or cards, and does not require batteries, it is very easy to use and install, and the installation instruction is included in the package. 【Wide Application】: The digital door combination lock is compatible with indoor and outdoor doors, meeting your diverse needs. It is suitable for professional commercial office buildings, vacation rentals or primary residences, as well as apartment gates, car parks, storage areas or security access areas., Weight: 1.79235819006 Pounds, Manufacturer: DEWIN