The product is a 2001 UD Upper Deck Sweet Spot Game Used Base Mark McGwire Ken Griffey Jr. trading card. This card features a piece of game-used material from Mark McGwire, a prominent player in the 2001 season. Manufactured by Upper Deck as part of the Sweet Spot set, the card is a valuable addition to any sports trading card collection, especially for fans of baseball legends like McGwire and Griffey Jr.