When the mug is empty, it shows fourteen closet doors. But when you pour in a hot beverage, 14 of the world's most famous gays proudly emerge. Includes Michelangelo, Michel Foucault, Freddie Mercury-see the product description below for a full list! • 14 oz. Ceramic coffee cup with a comfortable handle. • All of our disappearing mugs come in a beautifully designed, colorful box. • Heat activated color changing mugs are microwave safe, but not dishwasher safe. Hand wash only. Don't soak. • UPG is a novelty gift company specializing in smart and funny gifts. Check out our shop for all types of quirky fun stuff!