New Other Rawlings Machine Baseball Bat USA ( 10) 2 5 8" 27 17 1 Pc. Alloy Blue Size:27 17 2nd Generation AV2 Anti Vibration knob stay comfortable 2nd Generation AV2 Anti Vibration knob features an upgraded Integrated MatriX technology strengthens composite structures optimizing designs and materials for maximum performance DESIGNED WITH A LARGER SWEET SPOT the Machine USA Baseball Youth Bat ( 10) will help hitters make better contact at the plate HIGH STRENGTH HIGH PERFORMANCE this single piece aluminum design is constructed from aerospace grade alloy materials LARGEST ALLOWABLE 2 5 8" BARREL delivering a massive sweetspot and improved plate coverage FASTER SWING SPEEDS via the Machine's lightweight 10 balanced profile CERTIFICATION: Approved for use in all USA Baseball sanctioned leagues and events