... you 5. Pass FDA porcelain Magic mug,advertising color changing Add cold water, the picture outside will magic change ON temperature; 8 ... °C,12°C,15°C,22°CColor changing glass, Glass mug ... C,38°C,43°C,55°C,65°C color changing temperatureCold Color Changing Mug:Flower Series, Fruit Series, Season Series, Animals Series22 ...