The product is a lot of 62 Mark McGwire baseball cards, including 7 inserts featuring the player in his A's and Cardinals uniforms. The cards are standard size, made of card stock, and are original prints licensed by Topps. Mark McGwire, a legendary player in Major League Baseball, is featured on these English-language sports trading cards, which are a must-have for any fan or collector looking to own a piece of baseball history.