1,Multifunctional: This instrument mouthpiece trainer is multifunctional and can be used to build lip muscle endurance, practice mouth strength and repair the shape of the mouth. 2,Excellent Metal Material: This musical instrument mouthpiece exerciser is made of excellent metal material and comes with a removable rubber ring, which is sturdy and long lasting. 3,Easy To Use: This flute mouthpiece exerciser is very easy to use, use both ends and pull one end to work on lip biting force and lip muscle strength concentration. Please hold for 10‑20 seconds each time. 4,Good Compatibility: This embouchure training device mouthpiece has good compatibility and is suitable for beginners of trumpet, trombone, cornet, clarinet, saxophone and horn. 5,Wide Application: This embouchure training device has a wide range of applications and can be used at home, school, etc. for repairing the shape of the mouth and strengthening the mouth. Item Type: Embouchure Training Device Material: Metal Function: Correct mouth shape, exercise mouth strength, improve lip muscle endurance Application: Suitable for beginners of trumpet, trombone, cornet, clarinet, saxophone, French horn 1 x Embouchure Training Device