1.[Size] - Black marble clock is 12 inches x 12 inches, HD glass, frameless round analog wall clock, decorative wall clocks for living room bedroom kitchen office.black clock wall decor living room office. 2.[Material] - Contemporary black and white wall clock made of tempered glass dial, metal hands, bright and clear color, frameless design.decorative clocks for walls. 3.[Silent] - Silent wall clock,no ticking sound,no noise,this abstract wall clock will not disturb you even when you are reading,working,thinking,chatting or sleeping. 4.[Battery Operated] -Powered by one single AA battery (not included), this black wall clock requires no cords or outlets. Easy to hang, and has a long performance on a single battery.For longer life please use ordinary carbon battery instead of high duty alkaline batteries. 5.[Beautiful Decoration] - The office wall clock clock keeps time accurately and stylishly, suitable for living rooms, bedrooms, kitchens, bathrooms, classrooms, guest rooms, offices, restaurants, cafes, dining room, libraries, or walls of any color.