【FILE CODE LOCK】This code lock can be opened by touching and entering the code, no key required, easy to use, safe and reliable. Made from high quality zinc alloy materials, it can ensure sturdiness, precision and safety and durability and can be used for a long time. 【15-DIGIT PASSWORD】The lock can be set to a combination of 1-15 digits. The original dial is set to 1-2-3-4. It is very convenient for those who always forget to take the key with them, and the code lock can solve this problem. 【SECURITY CODE LOCK】Code security lock has safety protection function. If the code is hacked four times maliciously, an alert will be sent automatically, which is very secure. The password can be set and changed by the user, it will be saved automatically when the device is powered off, and the password will never be lost or scrambled. 【WIDE RANGE OF APPLICATION】Suitable for agents, schools, SPA/sauna centers, swimming pools, stadiums, golf courses, supermarkets, hotels, companies, factories,