Get more pop, more distance and a faster, lighter speed with the all new Quatro Pro -- a collision of our best technologies. The redesign of the Q4 technology features a newly constructed inner barrel yielding a larger sweet spot and a faster, more balanced swing for optimal offense. Light ‘Em Up Effective January 1, 2018, USA Baseball® will enforce a wood-like performance standard for all of their participating national member organizations: American Amateur Baseball Congress® (AABC), Babe Ruth Baseball® / Cal Ripken Baseball®, Dixie Youth Baseball®, Little League Baseball®, and Pony Baseball®. In addition, the use of 2 5/8" big barrel bats will be permitted at all levels. Approved bats receive a USA Baseball® stamp above the grip.