Solar System Color Changing Cup

Solar System Color Changing Cup $21

About Gift

In order to activate cup the temperature of the hot liquid should be over 70°C/158°F. At that temperature, it is possible for the color of the mug to change
Pour in the hot liquid and the constellations magically appear. Includes: Pluto, Neptune, Uranus, Saturn, Mars, Jupiter, Earth, Venus, Mercury
You will be able to determine whether the coffee is cold by the color of the cup, so as to avoid drinking cold coffee
A cool gift for the star lover, astronomer, or anyone looking for a place to put their coffee
Hand washes only. Not microwave or dishwasher safe(Please wash before first-time use)