Small stabilizer, big sound! The tone stabiliser from Martin Seibold is screwed into the valve stem of the instrument as a connecting intermediate piece. The sound becomes more voluminous and pure thanks to the Tone Stability Enhancer (TSE). The sounds respond more easily and snap better, which in turn makes the blower play safer and more confident. The tone stabiliser is not particularly important and can be attached almost invisibly to the instrument due to its compact dimensions. Easy to install. For installation, you screw the thumb screw out of the TSE. Place the threaded part from the back to the valve bushing as in the sketch and screw both parts together with the help of the knurled screw so that the TSE rests on both valve bushes. About the manufacturer The idea for the Tone Stability Enhancer comes from Martin Seibold, who has made a sounding name as a small parts supplier for instrument makers. His company is based in Baiernrain, a district of the Upper Bavarian community of Dietramszell. Martin Seibold is best known as the inventor of the established Minibal ball joint, which he introduced as early as the mid-1990s. Innovation and highest quality - Made in Bavaria