Swarovski 2038 Rhinestones HotFix SS10 are set using heat such as a Kandi Professional Touch Hotfix Applicator or can be used to make your own iron on transfers with mylar sheets. Swarovski 2038 Hot fix Flatback Rhinestones are a hot seller. Swarovski 2038 Hot Fix Flatback Rhinestones are sometimes also referred to as Xilion Rose. Swarovski 2038 Xilion Rose HotFix shown here is Tanzanite Shimmer SS10.