The GP Series mouthpieces feature an innovative shape and extra-heavy 24k gold-plated finish for players who prefer a focused, concentrated tonal core.
- Backbore: semi-narrow
- Characteristics: Helps generate brilliant sound on D and piccolo trumpet.
- Cup depth: semi-shallow
- Rim contour: semi-flat
- Rim inner diameter(mm): 16.46
- Rim thickness: standard
- Throat (mm): 3.65