The mute has a great tone and very good muted sound unlike other aluminum mute. However, the wall of this mute is made out of a fibre-like material, which will or might be compressed if not handled well. But the bag for it is a bit too expensive which cost half of the price of the mute.
P.s. both the Bb and C tuba mute of the brand can fit the B&S 3198 (PT-6) CC tuba.