Genuine Fred NOT MUG Heat-Sensitive Color Changing Mug

Genuine Fred NOT MUG Heat-Sensitive Color Changing Mug Is that mug too hot to handle? Just take a look. When it's hot, the heat-sensitive ink says so. When it's not, it's tells you that, too. Because guesswork is so not cool. Ceramic mug with food-safe heat- sensitive printing. • Combines fun and functionality in one; makes drinking your favorite tea or coffee an exciting and interactive experience. Not sure if the mug is too hot to handle? Just take a look • Crafted out of high quality ceramic that keeps your beverage warm • The ink changes the caption depending on the temperature of the contents. When the contents are cool, the mug says NOT in black letters. When the contents are hot the message changes to big red letters saying HOT?