Yamaha 15E4 Mundstück für Trompete
Yamaha 15E4, Trumpet Mouthpiece, No. 15E4, Standard series, Inner diameter: 16.92 mm, Rim contour: Semi-round (semi-flat), Rim thickness: Medium wide (semi-thick), Cup depth: Deep, Throat: 3.88 mm, Backbore: Wide, Color: Silver