Made of a durable polymer, it is designed for stability in all weather conditions making it ideal for marching band players. In extreme weather conditions, the barrel length can make the difference. Band directors may employ it as a cost-effective tool for improving overall clarinet performance…and boosting student confidence. Woodwind “doublers” and experienced players notice improved intonation, more even scales, increased clarity of throat tones, improved articulation and better altissimo. Simply rotate the barrel to personalize the playing experience and dial in the most dynamic response. Like all Rovner Products, it’s made in the USA.