A mute for the Bubble system trumpet (polymer).
Doesn't wrinkle, unlike aluminum ones.
Quite slim.
Better low-end than the Denis Wick.

THE WOW-WOW TUBE IS NOT INCLUDED.

There's another listing for this trumpet on my account.
The design is collapsible and has a threaded connection.

Sound demo from a customer in the US, link below:
youtu.be/KDPveSDSWLo

International shipping available!