Marcinkiewicz French Horn Mouthpieces are of a unique design, and are played by some of the most discerning horn players. These mouthpieces are numbered in a logical progression from wide to narrow and deep to shallow. These are some of the finest mouthpieces made in the world today and stand alone as such.

In the Marcinkiewicz French Horn mouthpiece line, the number of the mouthpiece equals number of the reamer (venturi) size (except for the Designer/Signature series).