Features: 1. Retro fake gem color change mood ring with open design is adjustable. 2. Your own body temperature will cause mood ring to change colour to reveal your inner emotions. 3. Colour changing ring made of imitation gem and metal, durable, anti-rust. 4. Elegant shinny gemstone, look like real, add more elegance and grace to your looks. 5. Great gift for women, friends, family. For birthday, anniversary, holidays, graduation, Christmas, Valentine's Day, Mother's Day. Notice: 1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow minor deviation due to manual measurement. Specification: Type: Temperature Change Color Ring Applicable object: children, adult Imitation gem size: 1.3*1.8cm The whole gemstone with outer frame size: 1.62*2.1cm Ring size: opening (adjustable type) (minimum size 17cm, maximum size is not limited) Material: fake gem and metalincludes:1 x ring