Warburton (USA) 10FLX Old Engraving Flugelhorn Mouthpiece One-owner item (me). Warburton flugelhorn mouthpieces have deeper cups than other manufacturers, producing a very soft sound. The "FLX" model has an even deeper cup, almost like a French horn cup. Conversely, the cup diameter is small, making high notes easier to play. Actually, this mouthpiece has a deeper cup than the new engraving mouthpiece I'm also selling, and it produces a very soft sound. However, the pitch of high notes is slightly lower as a result. I don't think you'll play high notes much on a flugelhorn, but if you do, you'll need to adjust the pitch with your embouchure. I've used it for many years, so there are small scratches here and there, but it doesn't affect the performance. If anyone is interested, please let me know. Thank you. m(_ _)m