About this item x14 alloy Barrel: lightweight performance alloy built for maximum pop and durability Half + Half: construction of DE Marini innovative technology featuring a composite handle and alloy Barrel for improved bat speed and performance 3Fusion connection: The streamlined design allows for greater weight control and feel while continuing to reduce vibration and redirect energy back into the barrel Reaction end cap: built with a blend of stronger and lighter materials, this end cap increases barrel performance without sacrificing swing speed