Used. Marucci CAT9 USSSA Senior League Baseball Bat, 2 3 4" 29 19 Blue Red 50 x 60 Great condition Detonator COR technology Silver black yellow Great condition Detonator COR technology for low barrel compression Dual Frequency Dampener: 2 piece design for a great feel with less vibration Black Onyx Carbon Barrel to increase power with a shorter break in period Speed helix grip: designed to provide comfort and durability Cylinder seaming: allows for consistent performance and durability across the barrel Approved for: ASA Clear window for personalization 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