The 1997 Pinnacle Inside Promo Pack is a vintage and collectible item that features baseball trading cards from Major League Baseball. This factory-sealed pack contains one standard-sized card made of card stock, showcasing players from the Chicago White Sox and Detroit Tigers. The pack includes a promo card of Frank Thomas and Tony Clark, making it a sought-after item for baseball card collectors. With its unique features and limited availability, this pack is a valuable piece of baseball memorabilia from the 1997 season.