Features: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.Specifications:Color:MulticolorMaterial: AlloyPendant:2.1x2.45cm/0.83x0.96inChain Length:50-55cm/19.68-21.65inConnecting Buckle:0.9cm/0.35inWeight:9g/0.31ozQuantity:1 SetNote:Please allow a little error on the size due to manual measurement.The color might exist slightly difference due to different displays.Package includes:1 Setx Necklace