Add a modern, creative twist to telling time with this unique wall clock from Umbra, you get a stylish, DIY wall dcor piece and functional clock in one. The clock mechanism operates on a quartz clock movement that ensures precise, quiet and maintenance-free time measurements. Inspired by house numbers, Numbra will make an attractive addition to your living space. Setting up and mounting this fun wall clock is easy and can be a fun DIY project. The metal numbers mount individually to the wall with easy to paste 3M brand adhesives, and the clock mechanism mounts with a screw or nail. The size is customizable depending on your preference, however, if you arent feeling adventurous, Numbra does include a preset wall template. Only 1 AA battery is required (not included) and you are set! With numbers as tall as 9 inch (23 cm), this can be one statement piece on a very large, blank wall.