Planet (Heat-Changing) Coffee Mug - 12 oz

Pore over your pour-over! This mug features beautiful original portraits of our solar system, and every time you enjoy a hot cup of coffee or cocoa, you can learn about each planet. As 19th-century astronomer Maria Mitchell wrote, "You cannot study anything persistently for years without becoming learned." 12 oz. Ceramic coffee cup with a comfortable handle. Comes in a beautifully designed, colorful box. Heat activated color changing mugs are microwave safe, but not dishwasher safe. Hand wash only. Don't soak.