Anderson Bat Company NanoTek SP Alpha Slowpitch Softball Bat ASA, NCAA, ISA, NSA and USSSA Approved 2 1/4 Barrel Diameter and Official Softball Patented LaunchPad barrel, FlexLink Composite Handle, Singlewall Design Ultra-Thin Handle, Sport Grip and Toughened TruFlex Cap Solid-Ergonomic Knob and Reduced Moment of Inertia