Anderson Bat Company TechZilla FP-10 Fastpitch Softball Bat ASA, NCAA, ISA, NSA and USSSA Approved 2 1/4 Barrel Diameter and Official Softball All metal, one piece, interior-sleeve multiwall design Ultra-Thin Handle, Sport Grip and Toughened TruFlex Cap Solid-Ergonomic Knob and Reduced Moment of Inertia