Product : Color: gray Material: zinc alloy + aluminum alloy Dimensions: L110*W80*H40mm Package includes: 1*Codebox High security performance: 4-digit password, 10000 combinations, high security, strong anti-theft protection. The aluminum alloy lock box is integrally formed, durable and high precision. The zinc alloy encryption head is more tamper-proof. 5 key capacity: Compact design, small size, takes up less space and is more convenient to use. Meet daily needs. Suitable for outdoor and indoor use: Weatherproof stainless steel. Heavy-duty aluminum alloy and steel provide additional resistance to cutting, hammering and sawing. Wide range of uses: Ideal for indoor and outdoor use. Can be installed in warehouses, doorsteps, garages, emergency entrances, etc. It solves the problem of carrying too many keys or keys being easily lost. Also suitable for surprise visits from friends and relatives and household services, pet sitters, real estate business and renovation etc. Easy to Install: Simply insert plastic screws and anchors into a wall or other hard surface to secure the key safe.