New in the Factory Wrapper is this Mizuno FrenzyAB500 Slowpitch Softball bat! It is a full composite bat made with Techfire Technology. It is NSA, ISA, ASA 2004, ISF and USSSA (no stamp) approved for play. Hard to find bat never hit with! It has a massive 14" barrel on it! Bat Specs: ' 2 1/4 " Barrel Diameter 'No USSSA Stamp ' Free Shipping!