The 2025 Panini Calvin Johnson Gridiron Kings #ATGK-CJN Shoe Box Card Shadowbox is a standard-sized football trading card featuring Calvin Johnson of the Detroit Lions. This card is part of the 2025 Panini Donruss set and is authenticated by Donruss. It is made of 20 Pt. card stock and includes an insert feature, making it a valuable collectible for fans of the National Football League (NFL) and enthusiasts of sports trading cards. This card, signed by Randy Johnson, showcases the legendary player's image and is a sought-after item for collectors of football memorabilia.