Easton MAKO CXN ZERO 11 Fastpitch Softball Bat TCT: Thermo Composite Technology for a massive sweet spot and unmatched bat speed CXN ZERO: 2-piece ConneXion Technology engineered for zero vibration and ultimate performance Ultra-thin 29/32" handle: All new 1.2mm HYPERSKIN Grip Certifications: ASA [98MPH], USSSA, NSA, ISA, SSUSA, ISF