Bass Bone (Trombone/Euphonium) Mouthpieces from Kelly Mouthpieces Style:Bass Bone 51D Crystal Blue Color designed for those in good

designed for those in good physical condition looking to benefit more from their training and exercise regime

and build endurance

All these Kelly Euphonium mouthpieces are made of Lexan

Never use to the replacement mouthpiece to share a PowerLung

Bass Bone (Trombone/Euphonium) Mouthpieces from Kelly Mouthpieces Style:Bass Bone 51D Crystal Blue Color designed for those in goodKelly Bass Bone Mouthpieces Playing the Bass Bone requires strong and relaxed breathing. So, using a Trombone Mouthpiece alone can help you exercise your breathing. To benefit from breathing muscle training, use PowerLung for about five minutes twice daily to strengthen your breathing muscles. So they are more relaxed when playing an instrument or doing any activity. Music teachers often recommend the PowerLung BreatheAir to their students to help