Thank you for viewing! This is a popular, temperature-sensitive, color-changing butterfly design necklace on social media^^ It turns black or purple when cold, and green or blue when warm. So, you can enjoy calm colors in the cold autumn and winter, and refreshing colors in the warm spring and summer. It's simple, yet has a presence and is easy to match with any scene. It's great for everyday use and formal occasions like weddings. It's a delicate and lovely piece of jewelry that doesn't overstate itself! Uses Silver 925 High-quality silver material is used for the metal parts. It's a material that is unlikely to cause allergies, but it doesn't guarantee that it's suitable for all allergies, so please be aware of that. Perfect as a reward for yourself, or as a gift for a friend☆ It's also a great gift for your girlfriend or wife. I've uploaded various photos, so please take a look! 《Color》Silver 《Chain》 S925 (stamped) Approx. 40cm + adjuster approx. 5cm 《No Brand》 ◎About packaging and delivery The product will be carefully packaged and delivered in an envelope to your mailbox. It comes with a gift bag (+ sticker) that can be used for gifts or storage. ◎Bulk purchase is welcome♪ If you purchase 2 or more items, you will receive a discount of ¥180 for each additional item^^ A 4-digit number (alphabets and numbers) is attached to the end of the product name. (Example: L001, R002) If you wish to purchase multiple items, please contact me with the numbers before purchasing(≧∀≦) This applies to all products I am selling♪ Please check my profile for detailed explanations! #Women's #Necklace #Pendant #Butterfly #TemperatureSensitive #ColorChanging #S925 #SterlingSilver #Silver925 #Events #WhiteDay #Christmas #Birthday #Present #EverydayUse