Each sealed box contains 6 packs of 5 cards each in a 160 card base set including 60 Rookie Letterman cards 1:3. >>> Each PACK contains THREE Memorabilia and/or Autograph cards. Parallel sets: Silver, Gold, and Black. Inserts: Rookie Threads (Single, Dual, Triple, and Maximum), Rookie STATure, Double Coverage, Phenom Flashbacks, Draft Day Ink, Signing Day Autograph, Rookie Exclusives, Scripted In Time, and SP Multi Mark Autographs.