An unique way to track the hours. Instead of Roman numerals or traditional numbers, this wall clock has a different equation at each demarcation. Its black and white color scheme makes the clock look like a chalkboard and it will be compatible with any color palette.
Clock runs on one AA battery (not included). Clock measures 11-1/2 inches in diameter. It is perfectly sized and can be seen from afar.
This clock is a great gift for a math teacher, engineer, mathematician or anyone who just loves numbers.