Features:This mechanical code lock is a lock that can be opened without a key. It is easy to install and easy to open. Waterproof, fireproof and moisture resistant. It can be used outdoors for a long time without rusting. The lock is small and exquisite, and can also be installed on some cabinet doors with a door thickness of 1.2-2.8in (30-70mm). With 11 password button combinations, you can change the password you need by adjusting the number dot arrows in the panel. There is only one set of front panel passwords. Wide application range and high safety factor. Zinc alloy material, sturdy and durable. Suitable for doors of different materials: wooden doors, aluminum doors, metal doors, iron doors, etc. (recommended wooden doors). The code can be entered in any order, for example 1234 can be 4321 or 1342 or any order. PVD processing, low cost maintenance, high-end PVD plating, ten years of fadeless Left and right doors can be used for easy installation. Specification:Condition: Brand NewItem Type: Door LockColor: Red BronzeFront Panel Size: Approx. 142 x 42 x 26mm/5.6 x 1.7 x 1.0inRear Panel Size: Approx. 142 x 42 x 15mm/5.6 x 1.7 x 0.6inMaterial: Zinc AlloyLock Tongue Size: Approx. 60mm/2.4inSuitable for Door Thickness: Approx. 30-70mm/1.2-2.8inUnlock Mode: PasswordInstallation Requirements:1. This door lock is suitable for the thickness of the door 30-70 mm.2. Before installing the appropriate password for the first generation lock, you need to set a password. Cannot be set after installation.3. This type of door lock cannot directly replace the ball lock. You need to open a screw hole on the original door.The handle can be interchanged left and right.4. The non-porous wooden door can be installed normally.Change Password Method:1. Open the panel and observe the knob on the back. There is a dot on the button. A points to the number 1.2 and B points to the outside. Then the corresponding button is the password.2. There is no password at the time of delivery. You can open the door at any time (the point on the button points to the outside)3. Use the tool to press the password button to rotate 180 so that the point points to the number. After the rotation, 1.2.3.4.5 points to the number, then the password of the door is 1.2.3.4.5Package List:1 x Front Lock Plate1 x Rear Lock Plate2 x Waterproof Mat1 x Lock Tongue1 x Lock Catch1 x Lock Box1 x Installation Kit1 x Instructions.