The rhinestones are attached to the fabric using electric applicator tool
Select the right nozzle for SS20 size rhinestones (the nozzle size is indicated on the nozzle itself).
Heat the tool for a few minutes.
Place the hot nozzle against the 1st rhinestone to be glued on, tip the applicator tool up through 180 degrees so as to be able to place the rhinestone back down on a level surface (you will then be able to see the glue sizzling, a few seconds are enough when the tool is hot), tip the tool slowly down again so to set the rhinestone in place. Press down so that the glue sticks to the fabric and then remove the tool.