1.5 GW Helios Trumpet Mouthpiece Rim Diameter 16.89mm, .665 inches Euphonium It combines a generous rim

It combines a generous rim for comfort and security with a medium-deep cup and thoughtfully open throat/backbore geometry — producing clean

Expect exceptional tonal color across the full range — from profound lows to secure highs — with flawless intonation

and let your sound shine

Similar to the Dave Hickman Signature Trumpet Mouthpiece

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1.5 GW Helios Trumpet Mouthpiece Rim Diameter 16.89mm, .665 inches Euphonium It combines a generous rimThe Giddings 1. 5 rim diameter offers the perfect next step up for players moving beyond a standard 3 rim. With a slightly wider inner rim diameter than a 3C, it delivers noticeably more comfort and freedom without jumping into the larger 1 or 1 territory. This makes it an ideal transitional mouthpiece for advancing students, serious high school players, college musicians, and professionals who want added support without sacrificing control or