The magnetic stripe information of each student ID card is different, which you may not know. You only need to brush it to know the magnetic stripe information of the student ID card. But the information in it is not very comprehensive, and we know that it is enough to give a discount.

The magnetic stripe information of the student ID card in the magnetic stripe bought by each school is different. Brush it and you'll know which school it belongs to! The number of times you brush the magnetic stripe will be in the magnetic stripe. Of course, in some places, the railway station is stamped or signed, and the magnetic stripe is not brushed.