This 2003-04 Upper Deck Phenomenal Beginning LeBron James Factory Sealed Box Set is a must-have for any Cleveland Cavaliers or basketball fan. The set includes 20 cards featuring the National Basketball Association (NBA) star in his rookie season. The box is configured with a serial number and is sealed for added protection. The cards are from the 2003-04 season and are a great addition to any sports trading card collection. This item is a unique and valuable find for any collector or fan of the sport.