? BEST WISHES ? Incorporate the infinite and butterfly elements, which shows the butterfly’s infinite pursuit of love and freedom, making it meaningful and unique. Just like the butterfly spreading wings and flying, we hope you can bravely fly to where the heart wants to go with your invisible wings.? CRYSTALS FROM SWAROVSKI ? The crystals we use are authorized by Swarovski. Perfect for your significant moments, fits from day-to-day look to evening or party wear.? SPECIFICATION ? Weight: 7.78 g(0.27 orz). Butterfly size: 16 mm * 19 mm(0.63 inch * 0.75 inch). 6.5 +2 extender(16.5 cm + 5 cm), could be easily adjusted to the most comfortable size. Beautifully crafted with 925 sterling silver, which is hypoallergenic and comfortable for your sensitive skin.? PERFECT GIFTS ? Comes in an elegant and adorable jewelry gift box. A perfect gift for Girlfriend, Wife, Sister, Friends, Mother, Daughter, Niece and suitable for any occasions such as Birthday Gift, Wedding Anniversary Gift, Christmas Gift, Valentine’s Day Gift, Mother’s Day Gift, New Year Gifts, etc.? AFTER-SALE SERVICE ? Every AOBOCO jewelry has a 12-month warranty. Please feel free to contact us whenever you need help, and we will reply you ASAP.