The product is a 2004 Donruss Classics Significant Signatures Green Lou Brock autographed card, graded a 7 by Professional Sports Authenticator (PSA). This original card features Lou Brock's signature, who was a significant player for the St. Louis Cardinals in Major League Baseball. The card is made of card stock and is a limited edition, with only 10 copies in existence. It is a valuable collectible for baseball fans and card enthusiasts alike, showcasing a piece of MLB history from the 2004 season.