Primos Hunting Sound Plate Series Ivory Plate Single Game Calls. This Game Call by Primos Hunting is made up of two thin latex reeds with a "Y" cut on the bottom reed. The Primos Hunting Ivory Plate Single Elk Sound Plate automatically positions the call in your mouth at the right place and angle making elk calling easier. The Primos Hunting Ivory Plate Single Elk Call Sound Plate w/ Latex Reed has a "Sound Plate " set at 30 degrees which is perfect for cow calf talk and satellite bull bugles. Specifications for Primos Hunting Sound Plate Series Ivory Plate Single Game Call: Manufacturer: Primos Hunting Species: Elk Features of Primos Hunting Sound Plate Series Ivory Plate Single Game Call One thin latex reed 30 angle of sound plate Reproduces cow calf and satellite bull sounds Package Contents: Primos Hunting Sound Plate Series Ivory Plate Single Game Call Primos Hunting 159: Sound Plate Series Ivory Plate Single Game Calls