Lighten your monotonous daily life with the magic cup. Every time you fill the mug with hot water over 40 Deg.C, a bright and colorful world map in the cup wall shows up gradually. Do not worry about the safety, it is an odorless physical reaction happening inside the harmless ceramic cup wall.
Color changing from black to colorful by filling with hot water
Creative and vivid world map pattern
The harmless ceramic material, heat-resistant, anti-corrosion, and no toxic chemical substances
Do not keep the cup in high-heat places, like a microwave oven, dish-washing machine, disinfection cabinet, etc
Do not expose the cup to strong sunlight for a long time
Do not scratch the cup wall with pointy and hard items in case of damaging the pattern