2016 AXE Element Youth Alloy Baseball Bat: L139C 2 1/4 Inch Barrel Diameter Approved for Play in Little League, Babe Ruth, Dixie, Pony, AABC and USSSA Features USSSA BPF 1.15 Certification -13 Length to Weight Ratio AXE Grip - Ergonomically Designed for Better Control, Bat Speed, Comfort, and Safety