Boquilla trombón grande borde dorado Bach 6-1/2AL 420 diámetro posterior garganta de 0,261"
It requires a well developed embouchure. TRUMPET • CORNET • FLUGELHORN • ALTO HORN • FRENCH HORN • TROMBONE • TUBA. Bach produces many different models so that each player can find the best mouthpiece for their individual embouchure.