The product is a 1984 Fleer Don Mattingly #131 sports trading card, featuring the rookie card of the Major League Baseball player from the New York Yankees. This baseball card is part of the base set released by Fleer in 1984, making it a valuable collectible for fans and collectors of sports memorabilia. With its excellent condition and rookie designation, this card holds historical significance as a key piece from Mattingly's early career in the MLB.