This baseball is an amazing addition to any New York Mets fan’s collection. The ball is autographed by Jerry Koosman, a legendary player in the game of baseball. The signature has been authenticated by Steiner Sports, ensuring its authenticity. The ball is beautiful snow white, and is an original piece that is perfect for any collector. It is a single signed item, making it even more special. Don't miss out on this opportunity to own a piece of baseball history.