Primos Hunting Hardwood Grunter Game Calls. This Grunter by Primos Hunting combines the durability flexibility and convenience of an extendible grunt tube with rich tones. The Primos Hunting 6-in-1 Hardwood Grunter includes an adjustable reed assembly that allows for grunts and bleats. The Primos Hunting Hardwood Grunter w/ Expandable Hose made from a select hardwood makes this an instant winner. Specifications for Primos Hunting Hardwood Grunter Game Call: Manufacturer: Primos Hunting Fabric/Material: Hardwood Species: Whitetail Deer Features of Primos Hunting Hardwood Grunter Game Call 6-in-1 Adjustable reed assembly allows for grunts and bleats Made from select hardwood for extra loud volume and deep throaty grunts Expandable hose for variable tones Package Contents: Primos Hunting Hardwood Grunter Game Call Primos Hunting 701: Hardwood Grunter Game Calls