Easton SP16BSUA Bomb Squad Dual Stamp USSSA/ASA Slowpitch Softball Bat (2 Piece) IMX composite optimizes the sweet spot for maximum performance CXN is a patented two-piece ConneXion Technology that maximizes energy transfer for optimized feel Sic black carbon handle eliminates vibration for better feel.For better feel 13.5 inch pro-style end-loaded long barrel for maximum power USSSA and ASA Certified