The shank

The shank of a mouthpiece must be so shaped that it makes an airtight seal with the mouthpipe of the instrument. The mouthpiece must also be a specified distance from the instrument and should penetrate just the right amount into the mouthpipe. Even if the instrument has too low a basic pitch, it is not a good idea to modify the mouthpiece and shove it further into the instrument. The correct location to correct the tuning is at the slide or at the end of the mouthpipe.

The plating

Normally, Original Schmidt Mouthpieces are silver plated. For musicians who are allergic to silver, the mouthpieces can be gold plated. If that is not sufficient, then a threaded mouthpiece with a thread?on top made of Plexiglas or other plastic can be made.