This large retro metal clock features a hollowed-out design with a frame made of solid iron for robustness and a retro appearance. The clock uses a high-quality quartz movement that is energy-saving and nearly silent, with only a little ticking that won't disturb you. It's suitable for various spaces like living rooms, offices, bedrooms, kitchens, schools, and classrooms. The hook design causes less damage to the wall while being stronger, and the rear slot design makes it easy to hang. It is powered by 1 AA battery (not included). The movement of this modern wall clock comes with a 6-month replacement guarantee; if the movement has any problems within half a year, contact us for satisfactory after-sales service within 24 hours.