The True Double(TM) is in our "Piggy BackA(R)" Series, meaning it has one frame stacked on top of another. This gives you 1/16" reed separation so your reeds don't stick. Wanna make that bad boy strut? Well, with the True Double(TM) you can do just that. It is a very easy call to use. It produces turkey talk with a true turkey rasp and tone. It also makes raspy yelps, clucks, cuts and cackles.