Louisville Slugger FPLX150 Fastpitch Sofball Bat -10 LXT (34-inch-24-oz) : 100% composite design. TRU3 3-piece bat construction S1iD barrel. technology. Balanced swing weight. 78" standard handle. -10 length to weight ratio. the LXT is one of a select few three-piece fastpitch softball bats available. This unique design strengthens the connection between the handle and barrel of the softball bat, and helps to redirect power back to the sweet spot all the while decreasing undesirable vibration.