Detail 01
.677 inch (17.20mm) cup diameter
Medium-large. Room for a full sound without the rim load of the .700-inch and larger models.

Independent shopping perspective
Medium-large cornet mouthpiece, .677-inch cup with a rounder number 2 rim. For players who want the model 16's free blow with easier flexibility.

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. Room for a full sound without the rim load of the .700-inch and larger models.
Detail 02
Narrower and rounder than the semi-flat 4 rim. Lips move more freely, so slurs and flexibility come easier.
Detail 03
Schilke's standard throat across the line. Resistance stays familiar if you're switching between their models.
Detail 04
Sits between the shallow B and the deeper D. Medium depth, balanced between warmth and upper-register response.
Detail 05
Tapered for a cornet receiver. A trumpet needs the trumpet-shank version of the same cup.
Detail 06
Tarnishes where skin touches it. A wipe after each session keeps it from dulling.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Same .677-inch diameter, same cup, same 26 throat. The 16C2 swaps in the number 2 rim — narrower and rounder — for more flexibility.
No. The shank is tapered for a cornet receiver. Schilke uses the same cup numbering on their trumpet mouthpieces, so look for the trumpet version.
It's medium-large. A student on something small may find the rim wide at first. The 15 is a slightly smaller all-around option.
It can. The semi-flat number 4 rims are the ones built for endurance. The 2 rim trades some of that for flexibility.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.