The product is a Bert Blyleven autographed 1971 Topps rookie trading card, authenticated by Professional Sports Authenticator (PSA). This hard-signed autograph features the Major League Baseball player from the Minnesota Twins, making it a valuable addition to any sports memorabilia collection. The card is an original from Topps, part of the base set for the 1971 season, showcasing Blyleven as a standout rookie in baseball history.