The Sound Plate automatically positions the call in your mouth at the right place and angle making calling elk easier. The 30° angle of the Sound Plate the double-reed design and V cut in the bottom reed make the Imperial Plate Double perfect for reproducing cow and herd bull sounds. The V cut also adds to the raspy sounds of the herd bull’s growl bugle and chuckle. – Two thin latex reeds with V cut in bottom reed – Angle of the sound plate is set at 30 degrees – Reproduces raspy cow and herd bull sounds