Griego Mouthpieces Model GP Bass Trombone
Griego Mouthpieces Model GP Bass Trombone, Mouthpiece For Bass Trombone, Artist Series, Model GP ""Gerry Pagano"", Cup diameter: Ø 28.575 mm (1.125""), Outer diameter: Ø 40.513 mm (1.595""), Bore: Ø 7.77 mm (.306""), Silver plated