Yamaha GP Mouthpiece 30 French Horn

Yamaha GP Mouthpiece French Horn 30, Mouthpiece for French Horn, Heavy, Gold-plated edge and inner bore, Standard contour, Standard thickness, Standard cup depth (2 cups), Bore: 4.40 mm, Halfway back hole@+*Model 30-GP:*@+@+, Inner diameter: 17.08 mm, Characteristics: Smaller rim diameter than the 31. All-round mouthpiece. Shallow U cup facilitates high tones, V cup facilitates low tones.@+*Model 31-GP:*@+@+, Inner diameter: 17.28 mm, Characteristics: Medium rim construction ensures relief in difficult passages. Relatively wide bore provides a heavy, slightly deep tone with extra volume@+*Model 32-GP:*@+@+, Inner diameter: 17.48 mm, Characteristics: Larger rim diameter than 31. Safe in the lower register. Large cup depth for a colourful, mature sound.