Up Mute (Horn/Bass Trombone)

This is for French horn, but I used it for bass trombone.

I bought it last month after trying it out at a certain musical instrument store, but I'm selling it because I was able to get a better mute.

Up-mutes are also available for bass trombone, but they tend to catch on notes like G and F# within the staff. I tried the French horn version as a long shot, and it worked better, so I bought it.
Even so, there is still some catching on the 4th and 5th positions in this harmonic series, but it seems to improve significantly with playing technique and the hardness of the grease.

[Pitch/Muting]
With Best Brass mutes, you have to pull out the tuning slide quite a bit to get a decent pitch, but with this mute, I was able to achieve my usual pitch with the normal amount of slide extension. The same applies to the pedal range.
I practiced in a steel-frame apartment building, and there were no complaints. The muting performance is comparable to Best Brass.

Comes with the box.
I will remove the Mathis sticker before shipping.