The 1990 Star Company Yellow Blank Back Promo Card featuring Barry Bonds of the Pirates is a rare sports trading card that celebrates the MLB World Series. This original card made of card stock showcases Bonds in his San Francisco Giants and Pittsburgh Pirates uniforms, highlighting the player's significance in Major League Baseball history. As a unique promo item manufactured by Star in the United States, this collectible piece is a must-have for baseball fans and card collectors looking to add a special piece to their collection.