Genuine Vincent Bach trumpet mouthpieces are the best available in the world. Bach trumpet mouthpieces are designed to meet every conceivable playing need and have for nearly three quarters of a century. A Bach trumpet mouthpiece will make a poor instrument play well, a good instrument play better. Volume and excellent intonation, ease of response in the high and low register, rich, uniform timbre throughout the range, and resistancec calculated to increase the player's endurance - these characteristics explain why the best professional artists choose Bach.Because Bach trumpet mouthpieces are the accepted standard of quality, their numbers are familiar everywhere as designations for certain models and types. Although Bach trumpet mouthpieces have often been copied, they have never been equaled for precision, tuning, and playing characteristics. Only genuine Bach trumpet mouthpieces bear the full inscription Vincent Bach with the model number listed.