This is a Denis Wick mouthpiece, also used by Roy Hargrove. Currently, the amazing trumpeter Jay Jennings of Snarky Puppy also uses Denis Wick mouthpieces as a Denis Wick artist (his favorite models seem to be 3C and MM4C, etc.), and he praised Denis Wick in interviews. Compared to a Bach 3D to 3E, it gives a warmer tone than Bach. The rim is flatter than Bach. For those who usually use a Bach 3C or similar, this is also good if you are looking for a brighter, more penetrating, and more brilliant sound. You can easily play with a sound that has a thick tone and an edge. The sound also has an elegant and clear feel that is typical of Denis Wick. Almost new, only used for trial playing.