Each sealed box contains 5 packs of 5 cards each in a 250 card base set including 50 Rookies (13 `Lucky 13`). >>> Each PACK contains ONE Memorabilia or Autograph card. Parallel sets: Gold and Rookie Autographs. Inserts: Swing Kings (regular and Memorabilia versions), Feel the Game(regular and Memorabilia versions), Strike Zone (regular and Memorabilia versions), Hitting Machines (regular and Memorabilia versions), Iron Man (regular and Autograph versions), All-Star Ballot (regular and Memorabilia versions), Faces of the Game (regular and Memorabilia versions), Dual Materials, and Autographs (Ultragraphs and Autographics).