The 1991 Donruss Series 1 Sealed Baseball Pack contains 15 standard-sized baseball trading cards featuring various legendary players such as Frank Thomas, Ted Williams, Ken Griffey Jr, Bo Jackson, Nolan Ryan, and Derek Jeter. These vintage cards are graded 10 by Professional Sports Authenticator (PSA) and come in their original pack from the 1991 Donruss set. Each pack includes cards made of card stock and may include a sticker. The product is a sought-after collectible for baseball fans and collectors alike, with cards representing teams such as the New York Yankees, Chicago White Sox, and Seattle Mariners.