The 1990 Upper Deck set contains 800 standard-size cards issued in two series, low numbers (1-700) and high numbers (701-800). High series foil packs contained a mixture of low and high series cards. The front and back borders are white, and both sides feature full-color photos. The horizontally oriented backs have recent stats and anti-counterfeiting holograms. Team checklist cards are mixed in with the first 100 cards of the set. Rookie Cards in the set include Juan Gonzalez, David Justice, Ray Lankford, Dean Palmer, Sammy Sosa and Larry Walker.