TMS Kobo Original Acoustic Improvement Goods Rotary Spacer (Hammered Copper)

Limited Edition
TMS Kobo Original Acoustic Improvement Goods
Rotary Spacer-kun (Copper Hammered Model)

This is an acoustic improvement accessory that is inserted between the rotary caps of a horn.
It changes the sound's attack and resonance.
Features a rich copper tone and improved responsiveness due to hammering.

Compatible with Yamaha and Alexander-Hulston.
Likely compatible with Tuba and Trombone as well.
Outer diameter: 21.5mm, Thickness: 1.5mm, Hole diameter: 10.5mm
Material: Copper