This bat features 2-piece composite construction for lightweight durability and varying wall thickness with slip planes for power. The Engineered Hitting Zone on the barrel reinforces the hitting face and utilizes directional flex within the handle. Axe handle.2-piece composite constructionVarying wall thickness with slip planes delivers powerEngineered Hitting Zoneutilizes directional flex within the handle for great performanceAxe handle offers a great gripUSSSA 1.15 BPF approved