The product is a 1991 Fleer Mark McGwire #17 trading card with five lines of text on the back. This baseball card features the player from the Major League Baseball (MLB) season of 1991, specifically with the Oakland Athletics team. The card is part of the base set produced by Fleer, a well-known manufacturer of sports trading cards. This collectible piece is a valuable addition for fans and collectors of baseball memorabilia, showcasing a prominent player like Mark McGwire during his career in the sport.