This is a trombone/euphonium mouthpiece. I used it for three years in high school. It's been three years since I last used it. It looks black in the photos, but it's originally a brighter, more copper color. It looks like it might be rust. I remember it being very easy to use when I was a student. I bought it as a required item at school. I don't have the box, and I don't know the brand, but the mouthpiece is marked with "VINCENT BACH 6 1/2A". I've listed the brand as Bach, but I apologize if this is incorrect. Thank you for looking. Please consider purchasing. I'm happy to answer any questions. #TromboneMouthpiece #EuphoniumMouthpiece #WindBand #Student #Mouthpiece #BrassInstrument #EasyToUse