The 2021 Panini Prestige Football Mega Box NFL is a sports trading card box that contains 40 cards, including one autographed card per box on average. The box features possible rookie cards of Trevor Lawrence, Justin Fields, and Mac Jones, and autographs from Patrick Mahomes II, Joe Burrow, and Trevor Lawrence. The cards are made of card stock and are standard size. The box is part of the 2021 NFL Prestige set and is manufactured by Panini in the United States.