The 1991 Upper Deck Baseball Edition Complete Card Set includes 800 standard-sized baseball cards featuring players like Ken Griffey Jr, Nolan Ryan, and Chipper Jones. Manufactured by Upper Deck in 1991, these original cards are made of card stock and include hologram features. This set is a comprehensive collection of Major League Baseball players from the 1991 season, making it a valuable addition to any sports trading card collector's memorabilia stash.