Traditional Feel. Precise Balance. Multi-Variable Walls. The F5 Junior Big Barrel bat's one-piece alloy design gives youth players the balance, speed, and control to do some heavy damage at the dish. Comes with a 1 year manufacturer's warranty from Marucci. - -10 Length to Weight Ratio - 2 3/4 Inch Barrel Diameter - One-Piece Alloy Construction - Balanced Swing Weight - Multi-variable Wall Design - Ring-free Barrel Technology - Custom micro-perforated soft-touch grip - USSSA 1.15 BPF certified - 1 Year Manufacturer's Warranty