Rim contours correspond to the Trumpet Mouthpiece models.

1-Piece Cornet Mouthpieces are available with the following standard Cups:

"C" Cup Depth: Medium Deep Bore: #27

"B" Cup Depth:  Deep Bore: #26

"A" Cup Depth:  Deepest Bore: #22

Please Note:
Standard backbore on all cups is the #7.

Each inner rim size also has a corresponding sized Trumpet and Flugelhorn mouthpiece.