Looking for a solution to press fasteners and eyelets that keep loosening, falling out, and as a result damaging your garments and accessories? Well the Prym Soft and Safe Power Dots are just that! Perfect for use with lightweight, delicate and jersey fabrics, these power dots work to reinforce and strengthen your fabric around the location of the press fastener or eyelet prior to attaching. Simply iron them on to the back surface of your fabric. An essential tool for repairs that last! Each power dot has a 20mm diameter.