The product is a Mark McGwire 1988 Topps Record Breakers trading card featuring the player in his Oakland A's uniform. This card is part of the original 1988 Topps set and considered an error version due to the white triangle at his foot. A corrected version of the card is also included, making it a unique addition to any baseball card collection for fans of the Major League (MLB) and collectors of vintage sports memorabilia.