2008 UPPER DECK SP AUTHENTIC BASEBALL HOBBY FACTORY SEALED BOX Configuration: 24 packs per box. 5 cards per pack. CONTENT HIGHLIGHTS:- Three Autographs per box, on average! - One By the Letter Autographed Patch card per box, on average! - One Autographed rookie card per box, on average! - Look for Autographed By the Letter cards from the 2008 USA National Team randomly inserted! - One Yankee Stadium Legacy Memorabilia Card in every case, on average!