Schilke

M1
Standard bowl shape C cup with a 24 throat and Schmitt backbore. Excellent all around mouthpiece for both C and Bb trumpet.

M150
Slightly smaller '150' Rim diameter, standard bowl shape "C" cup, 24 throat and Schmitt backbore.

M2
Slightly smaller '2' Rim diameter, standard bowl shape "C" cup, 24 throat and Schmitt backbore.

M3
Slightly smaller '3' Rim diameter, standard bowl shape "C" cup, 24 throat and Schmitt backbore.

F150
F cup model with shorter shank in '150' diameter. Offers a dark, mellow sound.