a.k.a. Utaguchi Adaptor (Adapter).
For those who have difficulty making a sound out of the shakuhachi mouthpiece. The adaptor's shape is the same as a recorder, so anyone can make a sound by blowing!
Compatible with an ABS plastic shakuhachi "Yuu", our 1.6--1.8 wooden/bamboo shakuhachi.
This can fit as long as the size and shape of the bore on your shakuhachi is compatible.
Also suitable for practicing your shakuhachi fingering!