Watch it turn from blue to red. Then red to jade the colors bled. Then back to blue it went from jade. You'll love to watch each color fade. You'll love to see your finger lit. These rings adjust for a perfect fit. These are old fashioned mood rings updated for the twenty-first century. Remember the old school mood ring that would change colors according to your "mood?" Most of us know they really work from body heat. - Height: 0.45 in. , 1.14 cm. - Width: 0.45 in. , 1.14 cm. - LED Colors: 1 Blue, 1 Jade, 1 Red - clear lens - Includes 2 Replaceable CR927 Lithium batteries --> Find classic seventies mood rings here.