PACKAGE INCLUDES: In our 3-digit keyless combination lock package, you will receive 2 combination padlocks (1 silver code lock, 1 black code lock). Our password mailbox lock uses password unlocking. This password lock can be used as a filing cabinet lock, drawer lock, mailbox lock, locker lock, wine cabinet lock, office cabinet lock, etc.PRODUCT SIZE: The lock cylinder length of our zinc alloy combination cam lock is 25mm, and the design is suitable for installation with a plate thickness of 10-20mm. cabinet door lock with code Suitable for mounting on most metal or wooden door and/or drawer fronts.PASSWORD UNLOCK: The initial password of our cabinet lock with password is 000. You can change your password after receiving the door lock. There is a hole behind the cabinet lock. When selecting a new password, press the hole with the small stick included in the package of our metal cabinet lock. Remember this password, release the joystick and you will complete the password change. The 3 password numbers give you up to 1,000 possible number combinations.ZINC ALLOY MATERIAL: Our combination drawer lock is made of zinc alloy. Thanks to the use of this high-quality material, our mechanical code locks are strong, precise, safe, corrosion-resistant and durable. Will not rust or wear out over time.SIMPLE OPERATION: Our combination password lock is very simple to use. You just need to enter the correct password, then rotate the password lock 90 degrees in any direction to unlock it.WARM REMINDER: Please remember the new password when you change your password.