Thin neodymium magnets covered with flat steel shells and sealed in transparent soft PVC are known as sewing(sew-in) magnets. The steel shells are plated with zinc or nickel, steel shell make the magnet mono-pole and stronger. The soft PVC make the magnets sew-able,they are sewn in textile and used invisible magnetic buttons. By using hidden PVC magnetic buttons(sewing magnets), the appearance of application products can not be affected.