Simply The Best In Custom Calls The RED Ninja Reverse Hammer by WoodHaven Custom Calls is a 3 reed call (top RED reed over two proph reeds). The RED Ninja Reverse Hammer is designed with WoodHavens very popular Hammer Cut. The difference in the RED Ninja Reverse Hammer is that the cut is on the left side of the call instead of the right which allows you manipulate where air flow is pushed through the call. This call will produce those raspy yelps of an old hen, as well as, those high-pitched kee kee runs of a lost turkey. From hard, crisp cutting, yelping, and whistling, to those soft clucks, purrs, and whinesthe RED Ninja Reverse Hammer offers todays turkey hunter a totally different turkey sound.