Marucci Cat Tee Ball (-11)USA Certified AZ105 alloy, the strongest aluminum on the Marucci bat line, allows for thinner barrel walls, a higher response rate and better durability 2nd Generation AV2 Anti Vibration knob features an upgraded, finely tuned harmonic dampening system for better feel and less negative vibrational feedback One piece alloy construction provides a clean, consistent, traditional swing Micro perforated soft touch grip with extra tack improves feel and