KELLY Mouthpieces have been developed over the past 30 years and are designed, fabricated, tested, packaged, and warehoused at their plant in Fond du Lac, Wisconsin. They are continually expanding our product line.
The Crystal Bass trombone range is an example of this as they developed this sze mouthpiece due to the large amount of requests made.
Perfect for the player that finds they have pain with the standard brass mouthpieces, or if they have allergies. Also used largely by American marching bands to avoid the multiple weather conditions.