Keyless SecurityThis 3-digit combination cam lock is easy to install, can upgrade any standard cam lock, and has the ability to be programmed in a non-resettable mode. Specification The cam lock has a cylinder length of 2.8cm and is designed to fit a material thickness of 2.2cm, the 3 dials give the user up to 1000 possible combinations. The default password combination is 0-0-0 and it is resettable. Durable: These cabinet locks are made of sturdy zinc alloy, they won't rust or wear out over time. time. NotesThere is a hole behind the lock, use a small stick to press the hole and choose your new password at the same time, remember this password, finally release the stick and your password is changed.Versatile: Use this combination lock as a lock for cabinets, drawers, mailboxes, cupboards, desks, etc.Instructions: The factory password for this lock is 000, which is three zeros. For the first use, set the password to 000, then hold the lock body with one hand (the threaded part, pinch the two parallel surfaces with your fingers), and rotate the lock surface of the other hand (i.e. the beveled surface with lines), clockwise or counterclockwise 90 degrees. (The first time you use it, you need to be a little stronger, and it will be easy to turn it a few more times) Product size: diameter 38mm Product color: silver Delivery quantity: One piece