SOLID CONSTRUCTION: This lock box for house key is made of strong and durable aluminum material, sturdy and unbreakable, designed for long-term use. The all-metal high-strength construction provides reliable security, resistant to breaking, prying, or tampering. The protective waterproof cover helps shield against water and dust. EASY TO INSTALL: Simple to mount the key lock box outside on a wall or door using the included mounting hardware. No power source required. EASY TO SET CODE: Remove the inner white plastic cover, turn the screws to set your desired combination, then replace the cover. The combination code is changeable according to your needs. WIDE USE: This key lock box is versatile and can be used indoors or outdoors to store keys or small items. Suitable for apartments, offices, warehouses, garages, and more. Ideal for homeowners, family members, landlords, vacation rentals, property managers, and real estate professionals to provide access for children, guests, emergency entry, gardeners, cleaners, and others. Color: Dark gray Material: Aluminum Size: 105 x 65 x 48mm Package Contents: 1 x Key Lock Box 4 x Expansion tubes and screws 1 x Key tool 1 x English manual Note: Only the items listed above are included. Other products are not included. Note: Lighting reflections and differences in display screens may cause slight variations in color compared to the actual item. Measurement may vary by +/- 1-3cm.