EXTRA LARGE CAPACITY - Large key box with code lock has an extra large space (inner size around: 4.3 x 3 x 1.6 inches) that you can place several keys such as house keys, car keys, security card. More storage than conventional key lock box. You can put your keys or car keys in it when you go to work or on vacation. HIGH SECURITY-Key box with code lock adopts hard aluminum alloy for durability and this metal material is rust resistant, waterproof and corrosion resistant. High-quality aluminum alloy will protect the box from hammering and sawing. The protective cover protects the combined dials from unpredictable weather conditions. EASY TO USE - Set the numbers you want as passwords and the 4-digit combination is easy to remember and reset. 4 dials give you 10000 combinations at most, making it very difficult to break, much safer than the 3 digit lock box. Code key box will not be stuck in the operation process for its good work. Secure key safe is easy to open when using the right