Now the quality and rich tones of old have been combined with a few twists of new technology. Primos has combined the durability, flexibility, and convenience of an extendable grunt tube with the rich tones of a high quality hardwood barrel to bring you the Hardwood® Grunter. Features Include: 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.