Mouthpiece for Trumpet GP Series, Gold-plated rim, cup and bore, Inner diameter: 16.68 mm, Rim contour: Semi-flat, Cup depth: Shallow, Bore: 3.65 mm, Backbore: Semi-narrow
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YAMAHA TR-14A4A-GP Mouthpiece for Trumpet Rim Inner Diameter (mm) : 16.68 Throat (mm) : 3.65 Characteristics : Fast-response high range and powerful
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