The 1989 Fleer Baseball Complete Set includes a total of 660 cards featuring Major League Baseball players, with Ken Griffey Jr's rookie card being one of the standout pieces in the collection. Manufactured by Fleer in 1989, the cards are made of standard card stock and are original prints. This vintage set captures the essence of the MLB World Series, making it a sought-after item for baseball card collectors. The English-language cards are authenticated by Fleer and showcase the talents of players from that era, making it a valuable addition to any sports memorabilia collection.