Red Bazinga Periodic Table of Elements Mug - Funny Coffee or Tea Cup - Science Chemistry Geeky Gift Great Geek Gift Dishwasher / Microwave Safe - Ceramic Holds 11 oz / 325 ml of your favorite beverage Lead Free BEWARE THE CHINESE COUNTERFEITERS! Neurons Not Included mugs are so popular that counterfeiters are selling poorly photoshopped, low quality mugs and claiming they are authentic NNI mugs. Make sure you're buying this mug from Neurons Not Included!