I really love my Denis Wick trumpet cup mute, you can open or closen the opening from the cup, so you can get differend sounds, so it is more like multiple cups / sounds in one cup, very nice :) It is made of very strong plastic, and will last a lifetime if treated nicelly. The one little thing that can be a pain is, that it falls out easilly, i think because of its weight, witch is kinda much to stuck into your horn; so your arms also will get fatigued more rapidly. Bud you most likely will not use the same mute for hours in a row so, smeh... Other then this, i really like my mute, and offcourse the sound it makes :) very nice