Simple design with large number display allows easy readability from a distance of up to 30 meters. Clock diameter 30.5cm with glass front, this clock has been specially designed to be readable from near and far. Clearly designed white dial with black and red numerals, Arabic numbers, minute marker, hour, minute and second hands. This wall clock consumes very little energy (average consumption 0.07mA); a single AA battery (not included) lasts for several months. Material: ABS plastic (case) and glass (cover).