If you can read this clock, you are without a doubt a geek. Each hour is marked by a simple math problem. Solve it and solve the riddle of time. Matte black powder coated metal. Requires 1 AA battery (not included). 11-1/2″ Diameter.

Product Features

  • Each hour is marked by a simple math problem
  • Matte black powder coated metal
  • Requires 1 AA battery
  • 11-1/2″ Diameter

PRICE $21.95

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