Features:100% brand new and high qualityPendant metal type: alloy, sturdy and durable.Metal chain type: stainless steel.As the temperature changes, the pendant will change its color. Black is below 14 degrees Celsius (32 degrees Fahrenheit), and the color is different between 14-38 degrees Celsius (33.4-94.9 degrees Fahrenheit).Free jewelry gift box, necklaces are for Mother's Day, anniversaries, weddings, birthdays, Christmas, Valentine's Day, graduation gifts for sisters, mothers, grandmothers, daughters, wives, girlfriends, aunts, mothers, grandma, girlfriends or treat yourself A great gift.If you are not satisfied with the product, you can return it and get a refund within 30 days. If you have any questions or concerns, please feel free to contact us. Package Includes:1x Necklace Specifications:Color:MulticolorMaterial: AlloyPendant: 2.2x2.3cm/0.87x0.91inChain Length:50-55cm/19.68-21.65inConnection Buckle:0.9cm/0.35inWeight: 9g/0.31ozQuantity:1pc note:Please allow a little error on the size due to manual measurement. The color might exist slightly difference due to different displays.