Extra Large Capacity The large key box with combination lock has extra large space (internal size approx.: 4.3 x 3 x 1.6 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 duralumin alloy, which is durable and this material metal is rustproof, waterproof and corrosion resistant. High quality aluminum 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 and does not Easy to use: set the number you want as the password, the 4-digit combination is easy to remember and reset. The 4 dials offer up to 10,000 combinations, are difficult to decipher and are much more secure than a 3-digit safe. The code key box works well and does not get stuck during operation. Security key safes open easily when you use the right combination. It will be a great gift for your family or friends. The external key box is made of durable and high-quality materials for long-term use. Just use the right combination to open the padlock in seconds, saving time searching for the key in your pocket. Note: The data is all manually measured, please allow 1 to 1 error. 3cm Due to differences in light and display, there may be color differences, please refer to the actual item received.