Marucci CAT Connect USA (-11) Baseball BatMarucci's CAT lineup provides the highest quality USA Baseball certified metal available. AZ105 Alloy, the strongest aluminium on the Marucci bat line, allows for thinner barrel walls, a higher response rate and better durability Multi variable wall design creates an expanded sweet spot and thinner barrel walls that are more forgiving after off centered contact Upgraded SDX LT connection utilizes a precision cut dampening layer directly moulded