These specially designed and field tested diaphragm mouth calls for elk are the latest and finest available, and you can bet that we constantly field test prototypes of these calls. They’ve talked to a lot of elk. We did extensive micrometer studies of many of the diaphragm calls on the market and determined what we believe to be the best latex thicknesses for each of the elk sounds the caller has to make. The Snowcrest line of calls is the result – latex thicknesses have been carefully selected to accurately simulate the elk so that your calling sounds will attract and bring in bull elk. In addition, the cow call proves a very accurate, gentle sound that is easy to manipulate. Narrow neck on the call also facilitates better tongue control on the latex. These calls also come in soft green colors so they don’t flash in the light when outside the mouth.