The product is a 2016 Panini Donruss Optic trading card featuring Prince Fielder from the Milwaukee Brewers, part of the Back to the Future insert set. This particular card is a Blue parallel, serial numbered to 149. It is a rare and collectible item for baseball fans and card collectors alike, showcasing a unique design and limited availability within the set. The card is a must-have for fans of Prince Fielder and the Milwaukee Brewers, adding value to any sports trading card collection.