1. Material This analog display wall clock is made of high-quality acrylic with white letters and numbers, perfect for the classroom or office. 2. Special Design The clock face is designed to resemble a blackboard, featuring math equations depicted as white chalk. Instead of traditional numbers, each delimitation displays a different equation. 3. Funny Mathematical As the clock ticks, the hands move around the dial, indicating the time through unique math problems for each hour. This distinctive wall clock offers a fun and challenging mental exercise. 4. Fashion Decoration A stylish decoration for any wall, particularly suited for classrooms, offices, and studies, making it an ideal gift for friends or their children. 5. Application Perfect for emerging math enthusiasts or anyone seeking a unique timepiece. Suitable for classrooms, studies, living rooms, nanny bedrooms, and offices.