New Marucci CAT9 USSSA Senior League Baseball Bat, 2 3 4" 28 18 Blue Red gold red 5 Length to Weight Ratio Black GRay 5 Length to Weight Ratio 2 3 4 Inch Barrel Diameter Acoustic Alloy Enhanced Durability Explosive Swing Speed Loudest Alloy on the Market Extremely Well Balanced One Piece Alloy Construction Precision Laser pOp 2 more consistent contact (2 3 4 inch ) Performance LP1 alloy barrel delivers explosive pop and superior durability for the Lifetime of your bat Hyper whip end cap removes unnecessary weight from the tip of the bat for a faster swing more forgiveness and more performance while maintaining the same strength as its predecessor Multi variable wall design creates an expanded sweet spot and thinner barrel walls that are more forgiving after off centered contact Ring free barrel construction allows for more barrel flex and increases performance with no "dead" spots Precision balanced barrel results in a lower M our new AZR alloy offers a more responsive microstructure for better feel