Aurora Color-Changing LED Light-UP Mood Ring
The fanciest LED light-up ring you will find, this Aurora slow color-changing mood ring will blow your mind. Colors change slowly and gently, providing a calming effect. These LED mood rings are sure to make you a star! Simply tighten the top to turn on, loosen to turn off, unscrew all the way to replace the button-cell batteries. Around half an inch in size. Replaceable batteries, installed.