The 1990 Topps Baseball Rack Box contains 24 unopened packs of sports trading cards featuring notable players such as Ken Griffey Jr, Frank Thomas, and Bernie Williams. These standard-sized packs are from the Major League Baseball season of 1990, manufactured by Topps in the United States. Each pack holds the potential for rookie cards and other valuable baseball trading cards, making it a sought-after item for collectors and fans of the sport.