These mouthpieces are made to each specific player's specifications.
Measurements such as inner diameter, venturi, etc., are not arranged
systematically, however this line is also numbered progressively
by cup depth from deep to shallow.
Each of our endorsees chose a Marcinkiewicz™ Designer/Signature
Mouthpiece because of their belief in the product. Each of these
mouthpieces were designed for a specific player at a specific point
in time. Many play Marcinkiewicz™ mouthpieces exclusively.