Twill iron-on patches is use to repair a tear worn area or hole. It is washable and dry cleanable. Instructions are check fiber content of item to be repaired to be sure it can withstand the heat setting required for correct application. Wash garment before applying patch. Heat dry iron for 5 minutes on cotton setting. Cut patch slightly larger than area to be mended. Round corners. If patch will cover a hole place a-piece of paper underneath hole before applying patch.