The product is a 1988 Donruss Gregg Jefferies rookie trading card, which has been autographed by the player and certified by PSA. This card features Jefferies as a member of the New York Mets in his rookie season, making it a highly sought-after collectible for baseball fans and card collectors. The card is from the base set of the 1988 Donruss collection, adding to its value and appeal for fans of the sport.