In this package you get two (2) sets of magnets (two positives and two negatives). Get a professional looking closure without special tools. Rather than mounting snaps with prongs to the front of your fabric in plain view, these snaps are sewn to the back of your lining fabric so will be hidden between the lining and exterior fabric. Each magnet is vacuum packed in a 30mm pliable sewing-friendly vinyl setting square. Installation is a snap! Simply sew through the setting square, with smooth side down, attaching it to the back of your lining fabric. No special tools required.