Magical things happen when you drink from a unicorn mug. I'm just guessing, since I've never drank from a unicorn mug before, but I'm ready to experience the magic. I'm thinking that drinking from this Rainbow Unicorn Color Changing Mug has to be a real life-changer. When you fill the mug up with hot liquid, the unicorn's mane changes from a solid color to a rainbow of colors. Adorable color changing Unicorn mug High quality ceramic Holds a capacity of 9 fluid ounces Not suitable for microwave or dishwasher use Measures 5. 91 by 3. 54 by 4. 13-Inches