SWAROVSKI ELEMENTS flatbacks are here! Also known as rhinestones, these components are perfect for adding sparkle to scrapbooks, flip-flops, clothing, greeting cards, cell phones and more! We've fallen madly in love with these terrific components from Swarovski, and we're sure you will too! Be warned, flatbacks can be addictive! Please note that when using flatbacks, you should never use a glue gun or super glue (cyanoacrylate) as they will damage the foil backing on the rhinestones.