The product is a rare, game-used bat belonging to Ken Oberkfell from the San Francisco Giants, specifically used during the 1989 baseball season. This Louisville Slugger B310 bat is a unique collectible item for fans of baseball memorabilia, showcasing Oberkfell's connection to the team and offering a tangible piece of history from a specific game. The cracking of the bat adds to its authenticity and rarity, making it a valuable addition to any sports memorabilia collection.