This product is a set of Russian nesting dolls featuring four players from the Oakland Athletics baseball team: Mulder, Zito, Hudson, and Hernandez. The dolls are designed in the style of babooshka dolls, with each player being a smaller doll inside the larger one. The dolls are white and green in color and are manufactured in China by BD&A. This product is a unique and fun way for fans of the Oakland Athletics to show their support for their favorite players.