The product is a Marquinhos 1/1 one of one 2021 Topps Merlin Heritage 97 trading card. This card is part of the Topps Merlin Heritage 97 UEFA Champions League 2021-2022 set and features Marquinhos as the player. It is a highly sought-after card due to its rarity as it is the only one of its kind in existence, making it a valuable addition to any sports trading card collection.