what players did you see using it? but the important question is without knowing anything about this mouthpiece why do u so suddenly want one?

Morgan Excalibur mouthpieces are hard rubber with a metal shank band at the end like you're describing. I have one for tenor and one for alto and I think these are among the absolute best values in the mouthpiece world today. They run about $130, depending on where you buy from and what kind of horn you're buying for (they're only available for alto and tenor). They have a very flexible sound and are very free-blowing. Ralph Morgan is a master and these mouthpieces are of the highest quality. They may not be everyone's absolute favorite mouthpiece but they are the only fully hand-faced pieces available in this price range (excepting other Morgan models). When i saw Marcus Strickland playing with Tom Harrell in NYC last sumer, he played what looked to be like an Excalibur, but it could've been something else that I'm not aware of. Other than that, I don't know who plays or endorses these pieces, but if you're still building your chops up, this is definitely a no-excuses mouthpiece.