what is the size of a debit card
The size of ATM cards is 85.60 mm × 53.98 mm (3.370 in × 2.125 in) and rounded corners with a radius of 2.88 -- 3.48 mm, in accordance with ISO / IEC 7810 #ID-1, the same size as other payment cards, such as credit, debit and other cards. They also have a printed or embossed bank card number conforming with the ISO / IEC 7812 numbering standard.