| The new TPX Dynasty features Louisville Slugger=s exclusive ST+20 alloy, their strongest bat alloy ever. ST+20 is a product of the same Alcoa computer-modeling programs that led to the development of the latest alloys used in the aerospace industry by Boeing and Airbus. The combined strength and toughness of ST+20 is more than 20% greater than the industry leading Warrior alloy.-12.5 length-to-weight ratio, bottle bat designPatented Sims Sting Stop System Synthetic Grip, 7/8" standard handleApproved by All Major Associations
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