Each sealed box contains 24 packs of 5 cards each in a 100 card set. >>> Each box contains ONE Memorabilia card and ONE Autograph card. Parallel set: Radioactive 1:12 (#`d to 100). Inserts: Lab Report 1:2, Kinetic Energy 1:6, Nobel Prize 1:12, Missing Element Mystery contest 1:12, Memorabilia cards 1:24 (Elements of the Race, Green & White Checkered > #’d to 25, Taking the Checkers > #`d to 45, Big Win > #`d to 35 and 1-2-3 Finish > #`d to 50), and `Special Ink` Autograph cards 1:24.