Louisville Slugger 2014 SB Z-3000 Balanced (ASA) Softball Bat, 34-Inch/28-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 Approved for play in the ASA and ISF