Features: -Made of high-strength aluminum alloy, hardened steel and PVC, it meets the highest quality standards and is strong enough to withstand hammering, sawing and prying. It is rainproof, windproof and sun proof, making it particularly suitable for indoor and outdoor use.-The password is designed with a 12-digit combination, giving you thousands of unique combination options. (Note: each number can only be used once, numbers can be entered randomly in no order, please take a photo or record your code so you don't forget it).-There is enough space inside to hold 5-8 small items, such as house keys, access cards, car keys, etc.-Easy to install, it can be mounted on any stable surface with screws, and it also comes with a detachable hook and loop .