Looking for a perfect solution for double-opening furniture? 3-dial mailbox combination cam lock offers thousands possible combinations, and a higher security. The mailbox combination lock replaces any standard cam lock with thousands possible combinations that can be easily reset within seconds. Features - Material: Zinc Alloy. - With strong construction and hardened zinc alloy shackles for added strength and safety. - Hardened zinc alloy has long service life durable, non-corrosive anti-smashing anti-scratch waterproof. - Anti-corrosion anti-rust anti-freeze modulation switch for a wide range of uses. - Combination cam lock with 3 dials is user friendly with easy to read dials. - Great for double-opening furniture cabinets. It is easy to modify and can be installed without drilling.