https://youtu.be/mU0tAru9Ovs When the thermochromic cup with a special temperature glaze on the cup is filled with hot water, the solar system orbit will gradually disappear. From the planets of the universe, slowly spread to the entire five continents! When the temperature in the cup drops, the pattern returns to the original pattern. It is not only the daily necessities that astronomical fans can't miss, but also the best choice for holiday gifts! Product specifications: ► Size: 8.2 cm diameter 9.6 cm cup; capacity 385 ml ► Content: Mug one ► Material: white porcelain ► Origin: China Precautions: ► Do not use hard toiletries (rice cloth, steel brush) and corrosive detergent to wash the printed surface, but the inside does not affect. ► Do not soak in water for a long time ► Dropping, bumping or bumping will result in damage to the product. ► Keep away from fire, avoid using oven, microwave oven, do not enter the oven, too high temperature may make the printing ink smudge.