DeMarini F5 Slowpitch Softball Bat C6 Composite Handle-wider composite weave maximizes handle performance with optimum flex X10 Double Barrel Wall is structure controlled alloy that maximizes the sweet spot with the strongest, yet thinnest, aluminum walls N2M End Cap is scientifically tuned to absorb vibration while maximizing power Positack 2 Grip 12 Month Limited Warranty, ASA, USSSA, NSA, ISF, ISA Approved