When you pour yourself a nice hot chocolate, coffee, pumpkin spiced beverage or tea in one of our Transforming Mugs, it changes everything – including the mug, itself. Watch the night before Christmas turn into Christmas morning with just hot water. Presents appear, stockings hang and someone has eaten the cookies! 12 oz. / 350 mL • 12 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! Timeless Keepsakes~ Trendy Kitsch~ We Have It All