How do you let people know you're smarter than them without letting them know? The answer is this mug!
For the passionate problem solver and nerdy souls, add some color to your routine with this two-tone, custom accent and mathematical equation coffee mug. This 11oz mug will have you solving problems at work, one zip at a time. 
.: White ceramic with colored interior and handle
.: C-handle
.: Eye-catching color contrast 
.: Lead and BPA-free