Simply Iron on process: Step 1: Spray water on the back of patch ( don't to tear off the glue ). Step 2: Place patch on garment where you want to decorate Step 3: Set iron temperature for cotton. Cover patch with a piece of damp cloth and iron for 10-20 seconds. Step 4: Turn garment inside out and iron for 30-60 seconds . The patch is fixed on garment firmly.