The product is a 1995 Pinnacle Museum Collection Checklist card featuring baseball players Ken Griffey Jr, Frank Thomas, and Mike Piazza. Made of card stock and manufactured by Pinnacle in 1995, this original sports trading card belongs to the Major League Baseball (MLB) league. The card is part of the base set and includes a checklist feature, with Frank Thomas being the only player signed on the card. A valuable collectible for fans of the Seattle Mariners and baseball enthusiasts alike.