Add a little magic to every sip, This 11 oz color-changing reveal mug transforms right before your eyes when hot liquid is added. At room temperature, the mug appears solid in color, and once filled with a hot beverage, your custom design is revealed, creating a fun and memorable surprise. Perfect for coffee, tea, or hot cocoa, this mug makes a great personalized gift, promotional item, or unique addition to your own kitchen. Details: 11 oz ceramic mug. Heat-activated color-changing finish. Design reveals when hot liquid is added. Returns to original color as it cools. Comfortable handle for everyday use. Care Instructions: Ideal for birthdays, holidays, corporate gifts, or anyone who loves a little wow factor with their morning drink.