The Easton Quantum Youth Baseball Bat USSSA 29in -10 Blue is designed specifically for young baseball players who are part of the USA Baseball (USAB) association. With a 2 5/8 inch barrel diameter and a weight of 19 oz, this bat is perfect for youth players looking to improve their game on the field. The Easton brand is known for producing high-quality baseball equipment, and this model is no exception, providing young players with a reliable and colorful option for their sport.