Each sealed box contains 18 packs of 4 cards each in a 353 card base set. >>> Each box contains ONE Autograph card. Parallel sets: Chrome and Refractor (#`d to 500; X-Fractor 1:1 > #`d to 225, Blue > #`d to 150, Gold > #`d to 50, Red > #`d to 5, and Super > #`d to 1). Inserts: Alex Rodriguez Throwbacks 1:9 (Refractor > #`d to 499, X-Fractor > #`d to 99, SuperFractor > #`d to 1; Autographs: 1997 Chrome > #`d to 99, 1996 Refractor > #`d to 50, 1995 X-Fractor > #`d to 25, and 1994 SuperFractor > #`d to 1), Two of A Kind Autograph (#`d to 13: Ripken/Rodriguez), and Printing Plates (#`d to 1; Autographs > #`d to 1).