3-Piece Kids' Play Plastic Baseball Set: Red 15" Bat and Yellow 2 1/2" Balls Perfect for smaller children, this 3-piece Plastic Baseball Set comes with a small red bat and three yellow balls. Bat measures approximately 15" with a 2 1/4" diameter base. Balls are 2 1/2" in diameter. Comes packaged in a poly bag with a header card.