The 1990 Fleer Update set contains 132 standard-size cards. This set marked the seventh consecutive year Fleer issued an end of season Update set. The set was issued exclusively as a boxed set through hobby dealers. The set is checklisted alphabetically by team for each league and then alphabetically within each team. The fronts are styled the same as the 1990 Fleer regular issue set. The backs are numbered with the prefix "U" for Update. Rookie Cards in this set include Travis Fryman, Todd Hundley, John Olerud and Frank Thomas