Embroidered Patch Set Thank you for viewing. Iron-on type. How to use: Place the smooth side of the patch on the desired location. Set the iron to medium heat. Place a 100% cotton pressing cloth over the patch and press for about 20-30 seconds. To ensure sufficient adhesion, iron from the back as well. Unused and in a clean condition, but please consider only if you understand that this is a used item and has been stored at home.