Not wrapped in plastic The 1990 Fleer Baseball Box contains 36 packs of standard-sized trading cards featuring players from the Major League Baseball (MLB) season of 1990. This vintage set includes cards made of card stock, with notable players like Ken Griffey Jr. The box is manufactured by Fleer in the United States, making it a collectible item for baseball fans and card enthusiasts looking to potentially uncover rare and valuable cards from the past.