Modern Wall Clock designed by Edward Lee and Adrienna Matzeg for Umbra. Made from aluminium and steel. Size can be customised depending on wall space but preset wall template is also included. Quartz clock movement. Requires 1 x AA Battery (not included). 5 Year warranty. Mounting Hardware included - clock mechanism mounts to the wall with a screw or nail, and metal indicators mount to the wall easily wih their 3M backing. Dimensions 100 x 100 x 4cm. The Umbra Blink Wall Clock is a modern wall clock which can be customised according to your wall space and preference although a preset wall template is included for those not wanting to be too adventurous! The wall clock mechanism operates on a quartz clock movement which ensures precise and maintenance-free time measurements. The metal time indicators and number 12 mount individually to the wall with easy to paste adhesive and the clock mechanism mounts with a screw or nail. A great way to add a unique and decorative touch to your wall.