Warburton 10FLX New 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. 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