SOFTONE Mute for Trombone Demonstrated by Ira Nepus (V3)

Larry Goldman produced this for his company, Lake Balboa Studios for master musician, Ira Nepus.
Ira has invented this great new mute for Brass players which, at the moment is available for:
* Trombone players (in 4 current sizes: Large Bass to Small Tenor) and
* Trumpet (in one size currently).
Softone Mutes are currently being distributed by Conn-Selmer.
- for any questions you can contact him at [e-mail]

[@kelvinsim9863]

how about for trumpet?