DeMarini Vexxum -3 Adult Baseball Bat with a 2 5/8-Inch Barrel BBCOR Approved SC4 Alloy Barrel  DeMarinis proprietary aluminum extrusion provides a thickness tuned wall that reaches down the entire length of the barrel to create a wicked sweet spot that can stand up to each crushing blow. Long Barrel Design  Get big. The Long Barrel design Maximizes the bats hitting surface by expanding the barrels area of contact to have the biggest allowable diameter. C6 Composite Handle  Designed with a wider weave that optimizes swing flex, this handle works as a powerful one, two punch with Vexxums SC4 Barrel. Half+Half Construction  This two-piece hitting system was introduced by DeMarini to create a large, more responsive sweet spot by silencing vibration, flexing before impact and re-coiling with a burst of ball launching energy BBCOR Approved for college and high school play