... Free design for 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 ... also a time to Flowering. FEATURES:1. The magic picture will appear when you put Cold liquid into ... ,Couple series, Birthday Series,Christmas Series,Halloween Series,Children Series and adult Series, 31°C,38°C,43 ...