General description The Black Secure Key Box is a mini portable secure key storage solution designed for both outdoor and indoor use. Constructed from high-strength zinc and aluminum alloys, it offers exceptional durability and protection against theft. With a large interior space, it can accommodate multiple keys and small items, making it ideal for various applications. Technical specifications Material: High-strength zinc alloy and aluminum alloy Dimensions: 7cm (L) x 2.5cm (W) x 8cm (H) / 7.5cm (L) x 3.5cm (W) x 9.5cm (H) (2.76" x 0.98" x 3.15" / 2.95" x 1.38" x 3.74") Lock type: 4-digit combination lock with 10,000 possible combinations Installation No tools required for installation Can be hung on door handles, gates, fences, cars, or other locations Removable handle for easy relocation Usage Suitable for indoor and outdoor use Ideal for rentals (Airbnb), garages, offices, schools, warehouses, etc.