A magnetic stripe also called a magstripe, is a type of card used to process payment transactions. It consists of a stripe of magnetic oxide tape that is attached to the back of a credit or debit card. The stripe contains data that can be read by electronic readers. The stripe is composed of three tracks of data, every 0.28 inches (7.11 mm) wide. The data on the stripe includes the account number, expiration date, and Card Verification Value (CVV).