1. Made of zinc alloy, strong, safe and durable. 2. There is only one set of passwords, and the numbers are not repeatable. For example, if the password 123456 is set to 231456, it can be opened. 3. 1-11 digit combination digital lock. The recommended password is set to 5-6 digits. It is easy and convenient to remember. Except C is the reset button, the others are password keys (including Y key). 4. Suitable for office doors, interior doors, rental doors, composite doors or any place where keys are not suitable! 5. With screw package and English manual, easy to install. Specification: Do you ever go crazy about missing key and can't open a lock? With our code lock, you will get rid of the trouble. Our code lock is suitable for various cabinets. No more keys needed, cool and practical. Don't hesitate to buy the practical code lock! Features: Made of zinc alloy, strong, safe and durable. There is only one set of passwords, and the numbers are not repeatable. For example, if the password