Description: This mood ring can sense your body temperature to test your mood. Color changes with your body temperature, and body temperature changes with your mood. If your body temperature is below 14°C, the ring's color is black, and color varies in the range of 14-38°C. The larger the temperature difference, the faster the color change Open ring design, you can adjust it according to your own needs, so that you do not have to worry about whether you can wear this ring. You can make it a fashion ring jewelry to decorate your daily look, and also can make it as a funny interesting toy to test your mood and body temperature. Suitable for many occasions such as birthdays, graduations, anniversaries, weddings, Christmas, Easter, Valentine's day and Mother's day. Best gifts for mom, your lover, wife, daughter, fiancee and girlfriend, best friend, sister, etc. Specification: Main Material: Zinc Alloy Polar Bear Size: approx. 1.78x1.5cm/0.7x0.59inch Weight: approx. 2.6g Package Includes: 1 Piece Polar Bear Mood Ring(including 1 piece color card and 1 Piece Gift Box) (6 Pack) Note: Lowest temperature is 0 °C，highest temperature is 38°C. It is forbidden from chemicals and any temperature water. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.