Made of high-quality alloy, with multiple layers of coating protection, antioxidant, corrosion-resistant, durable and reliable. It can be used for the installation of various doors, and is very suitable for locks on gates, shed doors, barn doors, gardens, courtyards, pet doors, cabinets, drawers, gun vaults, mailboxes, safes, and office filing cabinets. Suitable for left and right installation, with an installation angle of 180 °. Simply install the door lock onto the door frame, mark the height and installation hole, and then use the provided screws to install it onto your door lock. There is no risk of key loss, use a password to unlock. Please refer to the diagram for password modification. Please note: After changing the password, if you forget the password, you will not be able to unlock., Manufacturer: Young Wolf