All Brass "Heavy Series" trumpet mouthpiece

Trumpet mouthpiece for professional use, with a weight of 165gr (5,82 oz).
Made in turned bronze, with a silver plating.
It is a high quality handmade product that is individually tested to fit precisely to the following measurements:
1C - (17.22 mm)
1 D - (17.11 mm)
1 y 1/2C - (16.90 mm)
3C - (16.50 mm)
3D - (16.42 mm)
5C - (16.63 mm)
7C - (16.73 mm)
 
The number in parentheses represents the diameter of the cup in millimeters.