Rocky Mountain Wapiti Whacker Bugle Tube - With all of these innovative ideas all wrapped up in one unit, you can now expect the accuracy, realism and ease of use in this Bugle Tube. The most realistic sounding elk grunt tube ever! The dimensions of the inner hole size help to create deeper, raspier base sounding chuckles, growls and grunts, along with the larger chamber to create the accuracy and realism of elk calling. Most realistic sounding elk grunt tube Mouth opening: 1 inch Length: 20 inches The rubber coated end for eliminating plastic vibration soundsThe overall length for ease of packing in the mountainsThe Wapiti Whacker utilizes the V.E.T.T. Calling System