The product is a 2016 Panini Donruss Diamond Kings Prince Fielder #28 Test Proof Yellow sports trading card, featuring the player Prince Fielder from the Texas Rangers in Major League Baseball. This collectible card is an original insert from the set, with a limited edition serial number of /5, making it a rare and unique piece for fans of baseball trading cards. The card is in excellent condition and would be a valuable addition to any sports memorabilia collection.