Feature: 1. 3-digit password design, 1000 sets of password combinations. 2. Constructed with high quality zinc alloy for long service life and easy installation. 3. Suitable for letter boxes, lockers, shoe cabinets, staff cabinets, lockers, wooden cabinets, etc. 4. There is a password change hole under the lock. In the open state, use a stick to top the hole, do not release it, then change the password and release it after completion. 5. This lock does not require a key, so you don't have to worry about losing the key. Specification: Condition: 100% Brand New Item Type: Mechanical Code Lock Material: Zinc Alloy Optional Color: Gold, Cyan, Black Ruthenium Optional Thread Length: Approx. 20mm/0.79in, 30mm/1.18in Application: L=20mm. Approx. for 0.5-12mm/0.02- 0.47in Cabinet Thickness L=30mm. Approx. for 19-23mm/0.75- 0.9in Cabinet Thickness Password: 3 Digits 1000 Group Password Combination Initial Password: 000 Scope of Application: Mail Box, Locker, Shoe Cabinet, Staff Cabinet, Locker, Wooden Cabinet, Etc . Package List: 1 x Mechanical Code Lock Note: Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.