Denis Wick SM3.5 Silver-plated Euphonium Mouthpiece - Steven Mead model

All Wick euphonium mouthpieces are based on the proven principles of the trombone mouthpieces and offer subtle, yet significant, refinements to the throat and backbore to complement the euphonium's conical bore. Steven Mead models feature further refinements and result in a mouthpiece that excels in accuracy, articulation, flexibility, range and overall response.Slightly larger cup and throat than the SM3 for an open sound. -Cup Diameter: 26.40mm. -Rim width: 6.80mm. -Throat: 7.62mm. -Backbore: Barrel. Large shank.