Great For crafts and t shirt design.40 gross equals approx 5760 stones Korean Glass Hot Fix Rhinestones are heat activated with the glue already on the back to make all your crafting super easy.These can be used for all your rhinestone creations.The rhinestones will apply to garments and fabric with a hot fix rhinestone tool, heat press or household iron.All of our rhinestones are AAA Top Quality.Picture is for colour purposes.Please see sizing chart for actual size of the 3mm stone.