This unique and novel piece of equipment has the original intention of aiding those recovering from cardiac surgery and damage to the upper thorax. However, the exercise it provides is directly applicable to brass players of all ability. With graduated flow rate dial, the device allows you to maximize your inspiritory effort, increasing your lung capacity over time. The longer you can keep the ball at the top of the chamber at the highest setting the bigger your lung capacity! Using this after practice can build on breathing foundations without further fatigue to your embouchure. We think this is invaluable and vital to increasing the core skills of playing a wind instrument profoundly developing your tone and control.