Mood ring is also called the emotional ring,which is made of thermochromic liquid crystal.The color-changing ring senses your temperature and tests your mood. The color-changing ring gemstone is made of rare earth material, which is sensitive to temperature. As the human emotion changes, the body temperature will also fluctuate. The ring can display different colors such as black, brown, dark blue, green and so on according to the change of human body temperature. . The color-changing rings have dozens of shapes such as heart-shaped, various petal, and stars. The color-changing ring gives you insight into your mind. It is a magical quiz. It is a tool for "lie detection". It is an item that cares about others.<br>Black: melancholy, nervous or painful,<br>Orange - nervous,<br>Red - worry,<br>Yellow - anxious,<br>Green-green - complex,<br>Grass Green - Fear,<br>Green - curious,<br>Blue - Calm or relax,<br>Dark blue: happy, romantic or passionate,<br>Lilac - cold,<br>Dark green - calm,<br>Blue purple - happy,<br>Purple - Romantic,<br>Amber: slightly uneasy or anxious<br>Gray: very disturbed or anxious,<br>