Iron-on and Sew on Instructions: 1. Keep the back of the patches and the repaired clothing clean before use; 2. The back of the patches comes with a transparent adhesive film, and the household flat iron is adjusted to the cotton file (120-150 degrees); 3. Place the patches in the position that needs to be modified (do not tear off the adhesive), and press it back and forth a few times, usually for about 15 seconds; 4. In order to prevent burns, it is recommended to put a thin cotton cloth on the cloth (can be an old T-shirt, must be cotton does not fade!! Towels are not available), check if the edges are hot after ironing, on the edge Iron a few more times; 5. It is also necessary to determine the ironing time according to the thickness of the cloth. The thicker cloth is longer for ironing. After ironing the front, press a few times on the back of the clothes; 6. After the temperature is cooled, the processing is completed. Kindly note: If you want to fix it on the surface of clothing, hats, and bags for a long time, please use needle and thread to sew the edges of the patch.