The protective shoe fits the base of any household iron. It's made of fiberglass with a nonstick surface starch and fusibles wipe off. Nothing sticks Nothing burns or scorches Iron from cotton to silk or denim to lace without waiting for the iron to cool. Irons over sequins, puff paint, glitter motifs without damage. Easy for use on seams, darts, pleats creases. Helps give your sewing that professional look. Eliminates shine no need for a press cloth. Vented so it can be used with a dry or steam iron.