ZJchao Mathematical Clock, Wall Clock Modern Design Novelty Maths Equation Clock Timelike Math Clock, Unique(Black)

Description: It must be a very fashion decorations for the wall, especially for classroom, office and study room as well as an ideal your friends or their kids. It can enhance the brain exercise and will help you keep the vitality when you watch the clock. It's also the perfect office clock for an engineer, a mathematician or anyone else who works with numbers. Features: A unique and creative way to keep track of time, this wall clock is a funny and challenging brain exercise. As the clock ticks, the hands move around the dial indicating the time of day through a different math problem for each hour. Instead of traditional numbers, this wall clock has a different equation at each demarcation. For home use, the clock will bring a unique modern finishing touch to any room. A unique gift idea, a funny present for a math teacher to hang in his or her classroom. Specification: Condition: 100% Brand New Material: Acrylic Color: Black Powered Supply: 1 * AA battery(Not Included) Product Diameter: Approx. 30cm / 11.8" Package Weight: Approx. 341h Package Included: 1 * Acrylic Wall Clock  Note: 1. Please allow 1-2 cm error due to manual measurement and make sure you do not mind before ordering. 2. Please understand that colors may exist chromatic aberration as the different placement of pictures.