The 2021 Topps x ESPN 30for30 "Once Upon a Time in Queens" trading card set features part 1-4 of the New York Mets team. This baseball card set is composed of 10 cards per pack, manufactured by Topps in 2021 for the Major League Baseball (MLB) season. Each pack offers a unique glimpse into the history and current state of the New York Mets, making it a must-have for fans and collectors alike.