【Material】: The 3-digit combination lock is made of high-quality zinc alloy, with high hardness and good durability, strong and not easy to break, and high safety. 【Easy to use】: The combination lock has a 3-digit password, and the original password is 000. You can change the password according to the method in Picture 5. 【High security】: The 3-digit zinc alloy password has 1000 possible combinations, which is more difficult to crack than the 2-digit password lock, and it cannot be deleted manually. 【Convenience】: The keyless function allows it to be reassembled at any time without disassembling the lock, and no longer worry about the trouble of key hole damage or key loss. 【Multiple applications】: It is very suitable for use in toolboxes, cabinets, drawers, mailboxes, office filing cabinets, school locker locks or places where keys are not suitable. Size: The size of the password dial: Maximum diameter: 37.5 mm Surface diameter: 30 mm Thread lock body size: Diameter: 18.5 mm Length: