• Includes 20 sterling silver 925 earring backs with butterfly clasp plating • Size: 5.8 x 2.6 mm, compatible with most earrings • Elastic holes ensure a secure fit and allow you to easily remove earrings • Made with high-quality materials, rust-resistant and durable • Do not fade easily and are harmless to the skin • Smooth surface, high shine, lightweight and comfortable for daily use • Elegant and functional design that prevents earrings from falling off • Perfect as a gift for family and friends