Patent-pending DOUBLE BARREL construction is the ultimate combination of feel, pop and sound TX Xtra Tough Resin Matrix technology provides durability and flexibility for the lowest compression barrel in the game 2-piece ConneXion+ technology features NITROCELL Foam to create a lighter and better feeling connection between handle and barrel Ultra-thin 29/32" handle with all new 1.2mm HYPERSKIN grip Certification (1.20 BPF): USSSA (FASTPITCH ONLY), NSA, ISA.