This is a listing for a 1991 NFL Pro Set Series 2 Factory Sealed Box. The box contains football trading cards that are unopened and in their original packaging. The cards have not been sorted, graded, or altered in any way. The box includes cards from popular NFL teams such as the Green Bay Packers, New York Giants, New York Jets, Dallas Cowboys, Detroit Lions, and features popular players such as Dan Marino, Emmitt Smith, Barry Sanders, Bo Jackson, Troy Aikman, Brett Favre, John Elway, and Joe Montana.