Extra Large Capacity - The large key box with combination lock has extra large space (internal size is approx: 4.53 x 3.15 x 1.77 inches), you can place multiple keys, such as house keys, car keys, security cards. More storage space than traditional key boxes. You can put your keys or car keys in it when you go to work or on vacation. HIGH SECURITY - The key box with combination lock is made of zinc alloy, which is durable and this metal material is rust-proof, waterproof and corrosion-resistant. High-quality zinc alloy protects the box from hammering and sawing. A protective cover protects the combination dial from unpredictable weather conditions. The outer surface of the key box is made of environmentally friendly materials that is not Easy to Use: Set the number you want as a password, the 4-digit combination is easy to remember and reset. The 4 dials provide up to 10,000 combinations, difficult to crack and much more secure than a 3-digit safe. The combination key box works well