Patented V-Grip technology * MB5500 Atomic alloy for optimum strength and response * Direct Power Transfer - stiff handle design for explosive energy transfer. * Tru Balance weighting technology with huge sweet spot. Locked-N-Loaded End Plug II - maximizes trampoline effect. * Approved for Little League Softball, ASA, USSSA, NSA Approved. 2 1/4" barrel diameter.