Woodhaven Calls Ninja Hammer Turkey Diaphragm Call - The “Ninja Hammer” by WoodHaven Custom Calls is a 3 reed call (top green over two proph reeds). The Ninja Hammer is designed with a brand new cut that offers a very unique turkey sound. This call will produce those raspy yelps of an old hen, as well as, those high-pitched kee kee runs of a lost turkey. The Ninja Green latex is very user friendly to blow while still offering lots of backbone in the call. From hard, crisp cutting, yelping, and whistling to those soft clucks, purrs, and whines…the “Ninja Hammer” offers today's turkey hunter its very own unique sound.