The product is a vintage pinback button from the 1986 London production of the musical "CHESS," which starred Elaine Paige, Murray Head, and Tommy Korberg, with music by ABBA members Benny Andersson and Bjorn Ulvaeus. This memorabilia item is related to the theater industry and is an original piece from the time of the production, making it a collectible for fans of the show or those interested in theatrical history.