12-digit secure key box, waterproof and rustproof key safe for indoor/outdoor, combination lock key box with hook for school, office, factory. Durable and robust double-walled construction: This outdoor key box features a sturdy aluminum alloy main body and rust-resistant screws, providing extra strength and resistance to hammering, sawing, or prying. The key storage box offers superior corrosion and weather resistance, making it ideal for homes, garages, schools, and gyms. Dust cover and rain cover: The secure key box comes with a black cover that effectively protects the combination dials from weather damage such as dust, rain, snow, and ice, ensuring long-lasting use. The hook is easy to remove and install, and is quite strong and durable. Suitable for both indoor and outdoor use. Large capacity: The large key cabinet can hold approximately 12 keys or 2-3 car keys. Internal dimensions: 10 x 8 x 3 cm (3.9 x 3.2 x 1.2 inches). You can also store cash, access cards, ID cards, credit cards, etc. Easy to install: The waterproof outdoor key cabinet comes with instructions in 5 languages, a screwdriver, and a mounting kit (4 screws + 4 expansion plugs). Enhanced security: The secure key box is designed with a 12-digit combination lock, providing thousands of possible combinations for maximum security. NOTE: The original code is blank. When setting a new code, please take a photo to remember it. IMPORTANT: Please set the code to 5 digits. Our box cannot be set to the same number, and the code can be opened without a correct sequence.