General Description: The secure key lock box for outdoor use is designed for maximum protection and exceptional durability. Made of high-strength aluminum alloy, it resists damage from hammer blows, sawing, or prying. Its protective cover shields the dial from dust, rain, snow, and frost, extending its lifespan. With a four-digit combination, it offers up to 10,000 code combinations for enhanced security. Technical Specifications: Outer dimensions: 13.5 x 8 x 7 cm; Inner dimensions: 12 x 7 x 5 cm; Capacity: 7 to 15 keys, 3 to 4 car keys, bank cards, and other small items. Installation: The product comes with all necessary accessories, including 4 screws and 4 expansion screws, allowing for easy installation on any solid surface. The original code is 0-0-0-0 and can be quickly reset to set a new code from over 10,000 combinations. Usage: This key lock box is ideal for indoor and outdoor use, perfect for homes, offices, garages, dorms, gyms, hospitals, schools, and apartments. It allows for easy key sharing for emergency access, family doctors, Airbnb rentals, cleaners, realtors, family, friends, and pet sitters. Other Information: The light automatically turns on for 15 seconds each time the cover is opened and can be reactivated by pressing the black button. Rust, corrosion, and weather resistant. Please note that the product color may differ slightly from the image due to variations in lighting and screen settings. A difference of 1-3 cm may occur due to manual measurement.