New EXTRA Sparkle Czech Quality Rhinestones. You will receive 1 package containing 10 gross (1440 pieces). These rhinestones are all double machine cut multi-faceted, flatbacked of the finest Quality. Use these beautiful Rhinestones to decorate and add a sparkle to any of your items like high end clothing like evening wear, fashion wear, purses, Embroidery Designs and many more..... just think of the possibilities. Each rhinestone has a special glue on bottom that melts when touched by an iron, and then sticks to the material on which the Rhinestone is placed. Quality is just like Preciosa.