Every time you add hot liquid, this mug transforms -- and so does Wonder Woman! The cold mug features Wonder Woman in her secret identity as Diana Prince. But when you add a steamy beverage and things heat up, the mug changes color and the Amazon Princess flies through the air to save Steve Trevor from a menacing UFO! Wonder Woman makes your coffee break more thrilling and your afternoon tea more exciting! Now you can look forward to your every heart-pounding chai! Microwave safe but NOT dishwasher safe. Holds 14 oz.