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 Primos introduced its first deer grunt call in 1984. Made from a select hardwood, this call was an instant winner. Now the quality and rich tones of old have been combined with a few twists of new technology. We have combined the durability, flexibility, and convenience of an extendible grunt tube with the rich tones of a high quality hardwood barrel to bring you the Hardwood Grunter.