The 1988 Star Mark McGwire Yellow Boarder Factory Sealed Set is a vintage baseball trading card featuring the legendary player from the Oakland Athletics. This original set includes standard-sized cards made of card stock, showcasing Mark McGwire during the 1988 MLB season. The set is factory sealed, making it highly sought after by collectors of sports trading cards, especially those interested in Major League Baseball memorabilia. Celebrate the achievements of Mark McGwire as the Power King of Oakland with this rare and valuable collectible.