Louisville Slugger 2014 SB Z-2000 Balanced Softball Bat, 34-Inch/26-Ounce 2-1/4" barrel diameter 12" barrel design offers extreme hitting potential 2-Piece Pure 360 Composite construction provides thinner walls for more pop and less weight Balanced swing weight delivers incredible control at the plate USSSA, NSA, ISA approved (Not approved for play in ASA and ISF)