1.Using the key box: for indoor or outdoor use, the key box is the ideal solution for sharing your keys or access cards in complete security 2. Reinforced Security: programmable four-digit combination;large backlit dials for good visibility in low light conditions (CR2032 battery included) 3.Durable design: zinc housing and protective flap to resist attacks and bad weather;wall mounting for enhanced protection of your keys 4.Simple use: share your keys with your children, your household employees, your workers;perfectly suited for renting your accommodation (Airbnb) or shared accommodation 5.Specifications: outer (H x W x L) 14.6 x 10.6 x 5.3 cm, inner (H x W x L) 11.5 x 7.7 x 4 cm;mounting kit included Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia