Marcinkiewicz B3C-20 Pro Line Concert Hall
Marcinkiewicz Pro Line Concert Hall B3C-20, Mouthpiece for Trumpet, Pro Line Concert Hall, Outer diameter: 27.48 mm, Inner diameter 17.45 mm, Cup depth: 12.73 mm, Bore: 4.09 mm, Total length 87.63 mm, Rim contour: Medium-round, Silver-plated, C cup