50PCS 0.47-inch 12mm Mini Silver Metal Pearl Crystal Rhinestone Buttons Embellishment with Flatback for Headbands Hair Accessories Flower Center Bouquet Wedding Invitation. The flatback of these silver rhinestones has a sticky glue that is easy to use and can be used with a hot melt glue gun or iron. These rhinestones can be used to make bracelets, necklaces, earrings, hairpins, mobile phone straps, clothing, shoes, bookbags, scrapbooks, and so on, to make your life more beautiful. You can get 50 pieces of silver rhinestone buttons in each package.