The 1990 Topps Baseball Rack Pack Box contains 24 packs of standard-sized trading cards featuring top players like Frank Thomas, Larry Walker, and Sammy Sosa. This collectible set, manufactured by Topps in the United States, includes a total of 1080 cards made of card stock. The box also includes a base set and rookie cards, making it a sought-after item for fans and collectors of Major League Baseball memorabilia from the 1990 season.