Features: Lightweight and Keyless you don't need to worry about losing the keys anymore this combination cam lock is keyless,lightweight, durable,resettable, portable and safe. Wide range of uses: used in information cabinets, wardrobes, jewelry cabinets, glass cabinets, drawers, mailboxes, cabinets, etc. There is a small hole at the back of the lock, you can click the small hole with a small stick, and then select a new password, and after the lock is locked, the password will be messed up. Made of high-quality zinc alloy, wear-resistant and durable, a variety of specifications optional, higher safety resettable and 3 digits which makes it secure with 1000 possible combinations. Specifications: Material: Zinc Alloy. Color: Sliver Package included: 1pcs Letter box password lock.