DeMarini 2014 Insane WTDXINC BBCOR Baseball Bat (-3) synthetic Low profile D end cap is scientifically tuned to absorb vibration while maxmizing power and keeping swing weight low Hybrid comfort grip is a 2-piece grip built for ultimate comfort and tack SC4 alloy proprietary aluminum extrusion provides a thickness-tuned wall that reaches down the entire barrel to create a great sweet spot Rotation index is a numerical system that reminds players to rotate bat extending its life BBCOR certified