The 1991 Upper Deck Ken Griffey Jr #555 trading card is a standard-sized baseball collectible featuring the talented player from the Seattle Mariners. This original card manufactured by Upper Deck is made of card stock with a thickness of 20 Pt. It is part of the base set for the 1991 season and is a valuable addition to any sports trading card collection. The card showcases Griffey Jr in his MLB baseball uniform, making it a must-have for fans of the sport and memorabilia enthusiasts alike.