DeMarini Voodoo Black Baseball Bat 3 with a 2 5/8 Inch Barrel The SC4 alloy is an exclusive aluminum alloy for DeMarini and has been refined by DeMarini's research team to perform at the highest level. The SC4 aluminum alloy is thickness tuned down the entire length of the barrel for the maximum sweet spot DeMarini Pitch Black Plus handle - Tightest and strongest composite combined with twice as much silver trace to add strength to the handle to maximize power transfer to the barrel for added performance Ion V Endcap - Two piece endcap specifically designed for the Voodoo reducing vibration while pushing the energy to the sweet spot for more power Hybrid Performance Grip - 2-piece grip with thin performance feel and faded color grip Rotation Index - Numerical system reminds players to rotate bat extending its life