The 1991 Pro Set Series 1 NFL Football Factory Box contains 36 sealed wax packs of trading cards featuring players from the National Football League (NFL). This vintage set, manufactured by Pro Set in the United States, includes cards in standard size with a base set design. With cards from the 1991 season, collectors can enjoy the thrill of opening packs to find their favorite NFL teams and players, adding to their sports memorabilia collection. Ideal for football enthusiasts, this box offers a nostalgic look back at the sport's history.