Makes the sole-plate of your iron new again! Fits over the base of your iron. Nothing sticks! It"s made of fiberglass with a non-stick surface - starch and fusibles wipe off. 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 tha tprofessional look. Eliminates shine - no need for a press cloth.