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Mouth Strength Trainer, Posture Correction Brass Material Coating Finish Trombone Pressure Reducing Valve Ergonomic Design for Wind Instrument (Gold) : Musical Instruments

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Trombone Pressure Relief Valve Brass Mouth Strength Trainer Wind Instrument Mouthpiece Accessory

PRESSURE RELIEF: This valve can help the performer reduce mouth pressure during trombone playing, improve comfort and control performance. BRASS

Mouth Strength Trainer, Posture Correction Brass Material Coating Finish Trombone Pressure Reducing Valve Ergonomic Design for Wind Instrument (Gold)

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Mouthpiece Strength Trainer, Ergonomic Design Posture Correction Trombone Pressure Relief Valve Easy Installation Good Comfort for Wind Instrument (Gold) : : Musical Instruments, Stage & Studio