Easy to design and apply according to the following steps: Step 1: Spray water on the back of patch ( don't to tear off the glue ). Step 2: Put the patch on the right place of desired garment to avoid deviation ( or sew the patch on garment at first ). 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 5-10 minutes to make sure the glue has melted. The patch is fixed on garment firmly. Step 5: At last, iron the edge and corner of the patch from the garment front to ensure surface smoothly. Then you can get a handicraft, patch and clothes (or other textiles) perfect fusion. Note: You can either sew on or iron on all patches we sell. Permanent of application guaranteed by sewing. Don't use on fabrics ( low melting point ) which can not to be inoned, such as nylons, vinyls, or leathers.