For deep timber bulls and deep-chested bugles, Born and Raised Old Growth Diaphragm Elk Call delivers. With a heavier latex and tuned stretch, this call is made to handle power. From deep growls and chuckles to high-octane challenge screams, Old Growth gives experienced callers the backbone to push volume and hit every note hard. When the big bulls answer, make sure you've got the weight to match with the Old Growth call. FeaturesMedium to Heavy latex thicknessAbove average aggression toneRequires above average air pressure/ease of use