This revolutionary Acoustic Coupling Disc is a leap in sound enhancing technology. It stabilizes your instrument, protects floors, and provides acoustic enhancement to ANY endpin...steel, carbon fiber, and of course, to our own. Even works on carpeted surfaces. Just 2.5 inches in outside diameter and 5/8 of an inch high, the Tone Acoustic brass coupling disc features a black, non-slip surface on the bottom. The dish shape design prevents any loss of acoustic integrity, and in fact, enhances sound. It's the perfect combination of convenience and quality.
