| Trombone Mouthpiece (Small Shank) |
| Model | Rim | Cup Depth | Throat | Backbore | Playing Charateristics |
| Inner Diameter | Contour | Thickness |
| 45A | 24.26 | standard | standard | shallow | 5.85 | semi-narrow | Small inner rim diameter with an extremely shallow cup for brilliant tone. Easy high notes. |
| 45C2 | 24.26 | semi-round | standard | standard | 5.85 | semi-narrow | Small inner rim diameter with a clean bite. Easy playability with a bright tone. |
| 46B | 24.58 | standard | standard | semi-shallow | 5.85 | semi-narrow | Shallower cup than the 46C2. Outstanding high register. Fairly sharp shoulder. Brilliant tone. |
| 46C2 | 24.59 | semi-round | standard | standard | 5.85 | semi-narrow | Relatively large inner rim diameter. A good choice for advanced jazz players. |
| 47 | 24.98 | standard | standard | standard | 5.85 | semi-narrow | Smaller inner rim diameter than the 48. Outstanding endurance. Rich tone suitable for ensembles and orchestras. |
| 48A | 25.25 | standard | standard | shallow | 5.32 | semi-narrow | The 48 rim combined with a very shallow cup. For alto trombones. Bright tone with good volume. |
| 48 | 25.25 | standard | medium | medium | 6.62 | semi-wide | Well-balance rim and cup for all-around playing. Refined design meets the needs of professional players. |
| 48D | 25.25 | standard | standard | semi-deep | 6.62 | semi-wide | Same rim as the 48 with a relatively deep cup. Rich lower register with a rich, soft tone. Also ideal for euphonium. |
| 51B | 25.23 | standard | standard | semi-shallow | 6.92 | semi-wide | The 51 rim with a relatively shallow cup. Powerful sound. |
| 51 | 25.23 | standard | standard | standard | 6.92 | semi-wide | Relatively large inner rim diameter with large cup volume for a dark sound. Standard euphonium model with a beautiful rich tone. |
| 51C4 | 25.23 | semi-flat | standard | standard | 6.92 | semi-wide | Shallower cup than the 51. Plenty of volume and power. Solid tone throughout the instrument's range. |
| 51D | 25.24 | standard | standard | semi-deep | 7.11 | semi-wide | An even deeper cup than the 51 for a heavy, rich tone. Specifically for euphonium. |
| 52 | 25.65 | standard | standard | standard | 7.11 | semi-wide | Larger inner rim diameter and cup than the 51. Heavy tone. |