The 2021 UD Goodwin Champions Blaster Box is a sealed lot of two boxes containing trading cards featuring Michael Jordan' on one and Lebron James on the other. Manufactured by Upper Deck for the National Basketball Association (NBA), the set includes standard-sized cards made of card stock and could include autographs. This sports trading card set is part of the 2021 season collection and has various sports categories. The boxes are sealed, the cards in both Michael Jordan and Lebron James boxes are a valuable addition to any sports memorabilia collection.