It is used in each field. There are three magnetisms to record the data. It needs to use with terminal device, such as credit card, securities card, and member card; inquire card, savings card, tickets and so on. Magnetic stripe type: Generally resist the magnetic force card (300oe) High resistance of magnetic force card (3500oe) Printing directly type: low resistance of magnetic force card (300oe) For example, park ticket. High resistance of magnetic force card (2700oe) For example, subway card、 phone card.