The 1991 Fleer Ultra Baseball Factory Sealed Pack contains 14 standard-sized baseball trading cards featuring players from the Major League (MLB). This pack is part of the 1991 Fleer Ultra set, manufactured by Fleer in the United States. It includes features such as a sticker, base set cards, rookie cards, and inserts, making it a sought-after item for collectors. The pack showcases players from the New York Yankees and is a nostalgic piece for fans of baseball trading cards from the 1991 season.