Riven Origin Series Diaphragm Elk Calls - 3 Pack - The best things in life come in threes! The Origin 3-pack is our best selling Non-Dome mouth calls that offer callers everything they need to mimic a extensive range of elk vocalizations. The full spectrum of elk sounds OG non domed frame style Tastes like elk! Single Lady: The Single Lady delivers unbelievable realistic Cow Elk sounds. This call produces incredibly sweet and smooth Cow and Calf sounds. It is a must have for any elk hunter. Black Ice: This mouth call was designed for advanced callers wanting ultimate tonal range & superior acoustic realism. It too sits on a large frame non dome chassis making it slightly more difficult to run vs a domed style call. This call is truly world class. Stratum: The Stratum mouth call produces remarkable Bull & Cow sounds. This bad boy sits on a large frame non dome chassis making it slightly more difficult to run vs a domed style call. With a little practice the sounds this call produces will literally blow you away.