The product is a 1990 Leaf Frank Thomas #300 baseball trading card, graded as a perfect 10 by Professional Sports Authenticator (PSA). This card features the rookie card of the Hall of Famer Frank Thomas from the Chicago White Sox, part of the base set in Major League Baseball (MLB). As a highly collectible item, this sports trading card holds significant value for fans and collectors alike, showcasing a piece of baseball history from the 1990 season.