ALLIANCE mouthpiece model 1 for cornet. - Brand: ALLIANCE - Model: 1 Standard Series Inner rim diameter: 17.00 (mm), Depth: Deep, Rim: 5 (mm), Bore: 4.6 (mm) - Silver-plated finish - Application: Cornet mouthpiece - Condition: Good Sufficiently large size, a deep tone characteristic of the cornet. (Equivalent to Denis Wick 2) The box is included, but it is a different model number. Compared to other companies' mouthpieces, it has a substantial weight. Thank you for viewing.