Nice. Haven't been able to use it yet but it looks like a nice piece. Slightly thinner than I thought it would be

I share a tuba and got tired of constantly cleaning the "community" mouthpiece. The KELLYberg was a great price so I figured it was worth a try. Turns out I love it! It's very responsive and I'm getting a full, even tone through all registers. Highly recommended!

Same size as metal tuba mouthpiece and fit in sousaphone perfectly. Great for cold weather playing.

I was a little hesitant about ordering a plastic mouthpiece, but this one has some nice features. I use it to warm up the horn (saving me the problem of having a cold horn and a cold mouthpiece simultaneously to deal with). After warming up the horn, I swap to my Bach. The sound from the metal Bach is full and rich, compared to the relatively thinner sound from this plastic mouthpiece, but I don't perform with the KELLYberg, so that limitation doesn't matter all that much. It's also great for traveling, since it's light and I can pack it along with my BERP and buzz happily in locations where I couldn't possibly bring my tuba.

More responsive and better sounding than I expected.