Use Blink to add a unique and decorative touch to any wall. This wall clock mechanism operates on a quartz clock movement that ensures precise and maintenance-free time measurements. Blink’s metal time indicators and the number 12 mount individually to the wall with easy to paste adhesive and the clock mechanism mounts with a screw or nail. The size is customizable depending on your preference, however if you aren’t feeling adventurous, Blink does include a preset wall template. All you need is 1 AA battery (not included) and you are set. Measures 39.5 x 1.38 x 39.5" (100 x 4 x 100 cm). This wall clock is made with an eco-friendlier finish. It produces 85% less water and solid waste than traditional electroplating finishes. ⓘ Blink’s metal time indicators and the number 12 mount individually to the wall with easy to install strong 3M adhesive and included mounting template. Clock mechanism mounts with a screw or nail. Mounting Hardware Included: Blink includes a clock mechanism that mounts to the wall with a screw or nail, and metal indicators that mount to the wall easily thanks to their 3M adhesive. Warning: Surface damage may occur if adhesive mounting is removed.