This wall clock is a perfect addition to any home or office. With a unique design featuring math equations representing the time, it adds a fun and curious touch to any room. The clock is round, made of plastic and metal, and has a matte finish. It runs on a quartz battery and operates silently, making it perfect for any room, including the garage, kitchen, bedroom, living room, or home office/study. The clock has a 12-hour display and is battery-operated. It comes in a standard size of 12 inches in diameter. This clock is a must-have for anyone who loves math, numbers, and unique designs. Note: the second hand mechanism has a slight bend, but works perfectly AA battery operated