TMS Kobo Acoustic Improvement Goods Rotary Spacer (Brass Hammering Model)

Limited Edition
TMS Kobo Original Acoustic Improvement Goods
Rotary Spacer-kun (Brass Hammering Model)
①
This is an acoustic improvement accessory that is inserted between the rotary caps of a horn.
It changes the ease of hitting the sound and the resonance.
Features excellent responsiveness due to brass hammering.

Usable with Yamaha and Alexander Holton.
We believe it can also be used with tubas and trombones.
Outer diameter 21.5, thickness 1.5, hole diameter 10.5