The Easton ADV 360 USA Baseball Bat is a 30" bat with a 2 5/8 inch barrel diameter, designed for advanced youth players. Made of carbon composite material, this multicolor bat is lightweight at 20 oz with a balanced swing weight for optimal performance on the baseball field. With the Easton brand and support for USA Baseball (USAB), the ADV 360 series is a top choice for young athletes looking to enhance their game in the sport of baseball.