The cup to fit any mood, this tumbler changes color when you add ice, so it's like having two distinct tumblers in one! Depending on the color you choose, the 16 oz. tumbler makes a great keepsake to match a Fire and Ice, Underwater, Winter Wonderland, or Garden Prom or Homecoming dance theme. Made of durable acrylic, the double-wall insulated cup includes a clear lid and matching straw and comes with your choice of one-color imprint, so you can customize it for your school or event. Add ice to see the color change. The cup is not intended for use with hot beverages or in the microwave. Hand wash only.