Stomvi Cornet Mouthpiece, 7E. The size is similar to the same Back model, but the cup is slightly deeper. It works well with piccolo trumpets and E♭ cornets. Esteban Batallán, principal trumpet of the Chicago Symphony, also plays with a combination of a Stomvi mouthpiece on a Schilke piccolo trumpet. The gold plating on the rim is quite thin. There are small scratches on the rim, but they do not affect playing.