Plunger rubber tenor trombone and bass trombone.
It's been a year since I use it. It is made of rubber so it does not damage the clubhouse. It makes no noise when it is placed on the pavilion. Moreover, we easily peutt predre hand thanks to its rings. is the only one I found rubber. The others are all mtallique. As the model is flexible on some sound commme was his desire. Finally, it is pre-drilled so agree. Regarding the price, I do not know, I have been offered.
I would do without this choice problem.