Packaging content and ease of installation: The packaging includes a tool kit, eliminating the need for complex tools and making the installation process simple and easy High quality digital door lock: High quality safety locks are mainly made of high-quality alloys, with fine workmanship and durability. In addition, digital locks do not require battery power, making them more convenient Security performance: Equipped with a 14 digit numeric keypad, providing over 8000 combinations of 4 to 7-digit codes to ensure high security. The bolts design can effectively resist violent damage, leaving no traces and improving overall safety Reversible design and applicability: The digital lock has no handle design, suitable for all door opening directions (left or right), perforated door locks, double-sided needle lock screws, increasing flexibility and versatility in use Applicable: This type of door lock is usually suitable for doors with a thickness of 30 to 60 millimeters and is made of safe hard material - high-quality zinc alloy, Weight: 3.11733638468 pounds, Manufacturer: ALCXAZS