Description: color changeable jewelry set ,novelty and fashion trendy jewelry choice.The color can change depend on your mood and temperature,the ring size is adjustable.Cute turtle design suit for men ,women ,boys and girls fashion dress up .They will be black color below 14 degree ,and will be colorful between 14-38 degree.Come with stainless steel chains and delicate box ,will be great jewelry gifts.Specification:Material: Stainless Steel ,zinc alloy ,thermochromic StoneRing Size Approx 21x21mm/0.82x0.82inch,Weight Approx 3gChain length Approx 50cm/20inchPendant Size Approx 30x21mm/1.2x0.82inch,Weight Approx 6gBox Size Approx 81.5x51.5x26mm/3.2x2x1inchPackage Includes:(4 Pack)1 Piece Box1 Piece Necklace1 Piece Ring1 Piece Color Chart