Warburton 5W ATV Training device
Warburton 5W ATV complete Training device in very very good condition. Silverplated comes with ATV backbore as well.
Visualizers have been used successfully as a diagnostic tool by brass teachers since the 1920's. Our approach with the A.T.V. goes far beyond visual diagnostics, providing an advanced, high-intensity Isotonic workout and low-intensity exercises to develop a relaxed aperture for greatly improved tone in the lower and middle registers.