The 1990 Topps set consists of 792 standard-sized baseball cards. The cards are printed on gray stock. The card fronts have a non-glossy finish and feature color photographs of players. The card borders are colored with a fading rotating pattern in various colors (orange, blue, red, green, and purple) which don't relate to the player's team colors. The photo itself has a colored frame which, more-or-less, relate to the team colors. The card reverse is non-finished, with a mustard yellow color. As Topps has done for years, the backs contain player personal stats, career stats and a few lines of player trivia.
Key Rookie Cards include: Frank Thomas, Sammy Sosa, Bernie Williams, Larry Walker and Juan Gonzalez.