Master Lock Weather Resistant Combination Key Safe. This metal body key lock box features large light up dials and a resettable combination. Mounting screws are included. Outer dimensions HWD: 126 x 72 x 52mm. The safe provides a secure location for spare keys or access cards. It has an easy to replace CR2023 battery installed. Internal dimensions HWD: 103 x 57 x 25mm. Store shared keys securely behind a locked shutter door. This wall mountable key safe box offers a discreet and weather resistant storage option. Set your own four digit combination for complete security. The illuminated dials make it easier to open the safe in the dark. The shutter door provides better weather resistance and discretion. Fixings are included for easy installation. This medium sized key box is ideal for multiple keys or access cards.