【Highly secure four-digit combination lock box】This lock box offers 10,000 possible combinations, ensuring extremely high security and almost impossible to crack. Users can customize their own passwords at any time in four simple steps, which is very suitable for protecting the safety of important keys; 【Flexible installation options】The lock box is equipped with a detachable lock ring and provides two installation methods: you can choose to hang it on the door, or you can use the included screws and expansion tubes to firmly mount it on the wall, which increases the convenience of use; 【Waterproof and durable material】This lock box is made of high-quality stainless steel, which is waterproof, rust-proof and corrosion-resistant. Suitable for long-term indoor and outdoor use, ensuring good performance under various environmental conditions; 【Multi-functional and convenient】This portable lock box is an ideal solution for storing keys for entrances, garages, rental houses, warehouses, etc. It is also suitable for various scenarios such as Airbnb, real estate agents, cleaners, pet sitters, etc., avoiding the inconvenience and risk of hiding keys under carpets or in flower pots; 【Humanized design】Not only is it easy to install and operate, but it also takes into account the actual needs of users, making it very suitable for home and commercial use. Not only does it improve security, it also simplifies the key management process, making daily life more convenient;