Round Flat back Hot-Fix Rhinestones for Alexandrite making,Similar to Austrian Swarovski Crystal,Whole Sizes & Color Round ... iron, hardens afterward to attach stone when it cools. Perfect for anything : - Garments , Shoes , Computers , Household Items , Cars , Mobile Phones ... are not Swarovski crystal , but an excellent alternative.Our Advantage Full Sizes available:SS6,SS8, S10, S12,SS16,SS20,SS30, ...