Designed by Mark Drury and approved by the DOD Team, the new Tongue Series mouth calls are designed with cutting edge technology. Includes- #1 Typical MAD Cutter type cut Mark designed back in the 80s with his signature notch back in the corner. #2 Cutter type call with a cutter cut and notch in the back corner, then a Inverted V cut with a flat tongue. #3 Traditional Inverted V cut with a flat tongue. #4 Traditional Ghost cut with flat tongue and notches in the back of each side.