The 1990 Donruss Diamond Kings Ken Griffey Jr #4 trading card is a highly sought-after collectible featuring the iconic baseball player during his time with the Seattle Mariners. This card, part of the base set by Donruss, is a valuable piece for any sports memorabilia collector interested in Major League Baseball. With a near mint or better condition, this ungraded card offers a glimpse into the early days of Griffey Jr's career, making it a prized possession for fans of both the player and the sport.