The product is a 1991 Upper Deck Mark McGwire #656 baseball trading card featuring the player from the Oakland Athletics. This card is part of the base set for 1991 Upper Deck, manufactured by Upper Deck. As a parallel/variety card, it is a standard part of the MLB trading card collection, making it a valuable addition for fans and collectors alike. This card showcases Mark McGwire in his early years in Major League Baseball, making it a desirable item for sports trading card enthusiasts.