Ultra-Secure 4-Digit Combination Lock: With up to 10,000 possible combinations, this key box provides maximum security and is highly resistant to tampering. The easy-to-use reset mechanism allows you to change your code at any time for added convenience and peace of mind. Versatile Mounting: Equipped with a removable shackle, the key lock box can be easily mounted on a door or wall. The removable shackle offers two mounting options, providing flexibility to suit various installation needs. Note: The shackle is located inside the lock box and can be accessed after opening the box. Sturdy Aluminum Alloy Construction: The heavy-duty outer shell helps protect against hammering, sawing, and prying, ensuring reliable security for your spare keys. This durable design securely stores keys while allowing quick access when needed. Weather-Resistant and Corrosion-Resistant: Designed for durability in various conditions, this lock box features a weather-resistant and rust-resistant construction. Suitable for both indoor and outdoor use, it performs well in different environments. Multipurpose Functionality: Ideal for apartment entrances, garages, rental properties, warehouses, and more. This lock box is perfect for storing keys for home-sharing services, real estate agents, cleaning crews, pet sitters, and other applications without the need to hide keys in insecure locations. Color: Gray & Black Material: Plastic + Metal Package Contents: 1 x Lock Box Note: Light reflection and differences in display screens may cause slight variations in the color of the item shown in the picture compared to the actual product. Measurement may vary by +/- 1-3 cm.