With over 70 years of experience in the School and Office Supply markets, Charles Leonard Inc. is not just one of those online “Pop-Up” shops that are here today and gone tomorrow! With Charles Leonard products, rest assured that our products provide the quality and value you expect. everytime! With large black numerals against a white background, you'll be sure to easily see the time from anywhere in the room. Each clock has a black, plastic case with a clear, plastic lens and measures 13- 7/8" in diameter with a 12" face. Uses 1 "AA" battery, which is not included.