Surprise you favorite geek with this equation wall clock. It not only adds a mathematical twist to the everyday but all the equations are dead on. Telling time with this clock might seem a bit challenging but won't be to your average geek.
If you consider yourself as your parents favorite child then surprise them with this unique mug. They will think of you every time they drink their precious coffee out of this mug. Highest quality printing that will not fade for a long time.