Ultra-Secure 4-Digit Combination Lock: With up to 10,000 possible combinations, this key box provides maximum security and is extremely difficult to break. Its easy-to-use reset mechanism allows you to personalize your code at any time for added convenience and peace of mind. Versatile Mounting: Equipped with a removable shackle, this key lock box can be easily mounted on a door or wall. The removable shackle offers two mounting options, providing flexibility to suit your needs. Note: To access the shackle, you must open the lock box first. Sturdy Aluminum Alloy Construction: The heavy-duty outer shell helps the lock box withstand hammering, sawing, or prying, keeping your keys secure and protected. This durable box safely stores spare keys and allows easy access when needed. Weather-Resistant and Corrosion-Resistant: Designed to withstand outdoor conditions, this lock box features a weather-resistant and rust-resistant construction. Suitable for both indoor and outdoor use, it performs reliably in various environments. Multipurpose Functionality: This lock box is ideal for apartment entrances, garages, rental properties, warehouses, and more. Its a convenient solution for storing keys for Airbnb, real estate agents, cleaners, pet sitters, and others, eliminating the need to hide keys under rugs or flower pots. Color: Gray & Black Material: Plastic + Metal Package Contents: 1 x Lock Box Note: Light reflection and different display settings may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.