Simplify the following text for a Grade 5 native English-speaking person.
Original: A magnetic stripe card is a type of card capable of storing data by modifying the magnetism of tiny iron-based magnetic particles on a band of magnetic material on the card . The magnetic stripe , sometimes called swipe card or magstripe , is read by physical contact and swiping past a magnetic reading head .
Simplified: A Magnetic stripe card is a plastic card which has a magnetic stripe on it .