WerFamily GEEKCOOK Wall Clock, 12-Inch, Silent Non-ticking, Night-Luminous, Black Dial / Round Metal Frame Convex Glass Cover GK0015 Diameter: 12", Depth: 1.77". Creative design, simple but pure, clean and glorious. Design features of 24-hours system. Super-quality Quartz Sweep Movement guarantees accurate time and absolutely silent environment. Powered by one AA battery (Not included). Please use average carbon battery, instead of high duty batteries. A New generation non-trace wall hook offers easy installation.