The 2003-04 SPX Basketball Box is a highly sought-after sports trading card featuring LeBron James during his rookie season with the Cleveland Cavaliers. This autographed card, signed by LeBron himself, is authenticated by Upper Deck and is a part of the 2003-04 SPx set. The box contains standard-sized cards made of card stock, with the possibility of other valuable cards and memorabilia included. As a collector's item, this box represents a piece of NBA history from a historic season and player career.