Starry starry night... Pour a hot beverage and 11 constellations emerge before your eyes. Includes the constellations: Cassiopeia, Perseus, Sagittarius, Hercules, Andromeda, Scorpius, Taurus, Ursa Major, Ursa Minor, Orion, Castor & Pollux. Heat activated color changing mugs are microwave safe, but not dishwasher safe. Hand wash only. Don't soak.