MULTIPLE USE: The sliding bolt provides ideal protection against opening flush doors. The lock features a customizable 4-digit code lock that effectively locks a wide range of doors, such as cellar doors, gates, and closet doors. It can also be used to close gates or sheds. EASY INSTALLATION: Installing the deadbolt lock is easy. Start by closing the door, then hold the bolt horizontally. Then mark the holes on the door and door frame before attaching the sliding bolt using the provided screws. The screws are countersunk so they cannot be unscrewed. EASY INSTALLATION - Secure your doors, gates, sheds, warehouses, cupboards, cabinets, safes, Opening and closing with a customizable 4-digit code Applications The offers keyless convenience in the form of a traditional barrel bolt. It is a flexible solution for securing equipment, tools, livestock, very popular in garden sheds, gates, cupboards and any application where a barrel lock or hasp would be used. Instructions: To change the code: 1. From the factory, the code is set to 000. 2. To change the code, turn the adjustment SW1, to . 3. While changing the code as desired. 4. Return the adjustable SW1 to the original location to complete the setting. Good quality product