Nerd Knobs Coffee or Tea Mug - Great computer nerd gift

Nerd knob definition mug:

• Mug holds 11oz / 325ml of your favorite hot or cold beverage. 
• White lead free ceramic mug
• Permanently imprinted with earth friendly ink- will not fade
• Dishwasher and microwave safe.
• Our lawyer requires us to notify you that if you fill this mug with a hot beverage, the contents may be hot. 
• We really need to get a better lawyer.