For fast ironing of hems on skirts, dresses, trousers, jackets, and coats. Ideal for light to medium weight fabrics. Quick to iron on. Perfect look without any stitches. To apply, iron around the hem, finish the hem edges and insert the Wunderweb. Iron the hem firmly with a damp cloth, step by step. Allow the pieces to cool flat for about 20 minutes, so that the adhesive can set properly. We strongly recommend that you attach a small piece of wunderweb to a fabric remnant with your iron first to make sure that the hold and the adhesion meet your expectations.