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 ensures the lockbox is secure, resistant to breaking, prying, or tampering. The protective waterproof cover helps guard 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 dials to set your desired code, 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 after school, guests, emergency entry, gardeners, cleaners, and others. Color: Dark Gray Material: Aluminum Size: 105 x 65 x 48mm Package Contents: 1x Key Lock Box 4x Expansion Tubes & Screws 1x Key Tool 1x English Manual Note: Light reflection and different display settings may cause slight variations in color compared to the actual item. Measurement may vary by +/- 1-3cm.