The beautiful Koi Fish of Japan symbolize prosperity and good luck.  They gracefully swim with their beautiful peaceful flow.  Asian culture believes if you see and touch them, they will bring you good energy and good luck.
The heat-reactive surface reveals the koi flow design once the mug gets warm. The ceramic cup will go back to its original black outside and white inside when it cools down. The C-shaped handle helps keep a sturdy grip. It comes in one size – 11oz (0.33l) – plenty for that big morning cup of coffee. Made in the USA 
.: One size: 11oz (0.33 l)
.: Ceramic material with black exterior and white interior
.: Lead and BPA-free
.: Heat-reactive design
.: Glossy finish
.: NB! Hand wash recommended
Image by [isaxar / Shutterstock]