Yamaha offers two lines of bocals: standard and the famous "Super Bocal". These bocals allow the player to customize their sound and will improve the playing characteristics of any bassoon.
All bocals are made of sheet nickel silver (0.6mm) and silver-plated.
Yamaha "Super Bocals" are used by symphony orchestra bassoonists worldwide. They come in four different tapers (C, E, P, and V) and two different lengths (1=short, 2=long). They are available in either nickel-silver or brass, with a choice of silver, nickel, or Hamilton (alloy of gold) plated finishes.