The product being described is a set of four sealed 1989 Donruss Rack packs, each containing 45 standard-sized baseball trading cards. These vintage packs feature players like Randy Johnson and are part of the Major League Baseball league. Manufactured by Donruss in the United States, the cards are made of card stock and include rookie cards from the 1989 season. A must-have for collectors and fans of baseball trading cards, these packs offer a nostalgic look back at the players and teams of the past.