These are high quality premium hotfix rhinestones available in a variety of colors and currently offered in 6ss and 10ss sizes.
High quality diamond cut hotfix rhinestones, then these are an excellent choice. The back (bottom) of these rhinestones are flat with glue that when heated by a hotfix applicator wand, iron, etc. will melt the glue backing causing it to adhere to the fabric. The glue on these rhinestones dries clear.