This is a B♭ clarinet mouthpiece from MAXTON. The model is AMY. The workshop is in Vienna, Austria, and these mouthpieces are not readily available in Japan. It was made by Martin Fluch of the Vienna Radio Symphony Orchestra, and Ricard Morales also supervised the production. Please refer to the opening and facing chart before purchasing. It feels very good to play, and it's a mouthpiece that makes the instrument vibrate a lot. It is a completely unused, brand new item.