The Easton Model YSB18S350 USA Baseball 2 1/4 S350 Youth Baseball Bat is a high-performance aluminum bat designed for youth players. With a 2 1/4 inch barrel diameter and 29 inch length, this bat is specifically approved for use in USA Baseball (USAB) leagues. The lightweight design and colorful blue, yellow, and black finish make it both durable and stylish for young players. The Easton brand and S350 series are known for their quality and performance, making this bat a great choice for aspiring baseball stars.