[High Security]: Compared with 3 digit locker, our storage box for keys with 4 digit code provides 10,000 combinations, more safety and reliable. [Large Capacity]: Compact design, small size, takes up less space, and is more convenient to use, equipped with large internal space to store up to 5 keys + 1 card. (External dimensions: 115x95x40mm, Internal dimensions: 90x63x30mm) [Suitable for Outdoor & Indoor Use]: Key storage equip with slide cover, weatherproof rust-resistant steel. [Easy to Use & Stall]: Resettable key safe box allows to set your unique password for convenience and security. Comes with instructions and mounting kit, easy to install. [GUARANTEE]: We provide a 45 days money back and 12-month worry-free service. If you have any issues please contact us.