Yany Boostar Screw (suits Yanigisawa and Selmer)

Wearing it creates a moderate sense of resistance, smoothing the flow of breath, and
providing a rich sound quality with volume in the entire range.

In addition to the basic screw A, joint part B and
joint part C with different weights can be jointed, and
three patterns can be customized.

By combination, wind feeling and sound quality change further.
Depending on the music and the music scene,
you can also use it widely from soprano to baritone .