This is a boxed set of 1990 NFL Pro Set Collect A Books, containing three sets of 36 sports trading cards each. The cards feature players from the National Football League (NFL), including Barry Sanders, Troy Aikman, and John Elway, among others. The set is sealed and in its original form, manufactured by Pro Set in the United States. The teams represented include the Buffalo Bills, Chicago Bears, and Dallas Cowboys, and the set is in English.