?These are GENUINE SWAROVSKI crystal flatbacks with highest standard of quality. Its unique sparkle and shine gives each design an unforgettable appearance. Each piece contains 14 facets with a Hotfix backing. It is ideal for decorating cell phones, fabrics, scrapbooks and many many more. Hotfix Products are simply and quickly applied by using heat. You could iron them on many materials. ?Flat Backs Hotfix (HF) are loose crystal components with a flat reverse side that has been pre-coated with a heat sensitive glue. Flat Backs HF can be easily applied by heat to a range of textile carrier materials and produce a durable and long lasting crystal effect. Flat Backs HF are available in a multitude of colors, shapes and cuts. The most important single item in this product group is the Swarovski XILION Rose - the new generation of brilliance.