Detail 01
3C size
Medium-large rim, medium cup. The common all-purpose size — comfortable range and tone without specializing either direction.

Independent shopping perspective
A silver-plated 3C cornet mouthpiece. A standard middle-of-the-road size that works as a replacement or a step up from an unmarked stock piece.

Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
Medium-large rim, medium cup. The common all-purpose size — comfortable range and tone without specializing either direction.
Detail 02
Smooth, slightly grippy feel on the lip and easy to clean. Plating can wear through over years of heavy use.
Detail 03
Shorter, narrower taper than trumpet. It seats in a cornet receiver only; a trumpet mouthpiece won't substitute.
Detail 04
Keeps the round cornet tone while staying workable up high. A deeper cup would darken it and cost range.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
No. Cornet shanks are smaller and shorter than trumpet shanks. It won't seat properly in a trumpet receiver, and forcing it can damage the leadpipe.
Yes. 3C is one of the most common all-purpose sizes — enough rim for comfort and endurance, enough cup for a full tone without hurting the upper range.
Warm soapy water and a mouthpiece brush, then rinse and dry. Do it regularly; buildup inside the throat narrows the bore and changes response.
It can, after years of heavy playing, showing brass underneath. It doesn't affect how the mouthpiece plays, though some people react to the exposed brass.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.