Mellow Yellow Momma Diaphragm Elk Call by Rocky Mountain Calls features 3/4-racked latex to create easier-obtained mews, chirps and nasals sounds. You can use this versatile palate-plate latex call to make a wide range of cow and calf vocalizations. Unlike other diaphragms, it sets right behind your teeth for outstanding sound control. Low tongue pressure delivers low notes and high pressure produces higher elk sounds. The ingenious design is easy to blow and the latex is stopped by the palate plate, so you can't go higher than the right note. 3/4-racked latex to create easier-obtained mews, chirps and nasals sounds Makes a wide range of cow and calf vocalizations Sets right behind your teeth for outstanding sound control Low tongue pressure delivers low notes High pressure produces higher elk sounds Ingenious palate-plate design is easy to blow