Description:100% Brand new and high quality.Design with beautiful tail shape， fashionable and full of charming.Finger size: the smallest size 17 mm;Maximum size unlimited (adjustable);Color principle: with the temperature change and change color， black under 14 ��， change different color between 14-37 ��.Material: AlloySize: Approx. 22 x 19.8 x 2mm/0.87 x 0.78 x 0.079 inchColor: Color changing Package Includes:1 x Mood Ring