- For rotary valve tenor horn and baritone - Improves response and accuracy - Makes the sound more centered - Screw the knurled screw completely out of the TSE, place the threaded part against the valve sleeve from behind and screw both parts together using the knurled screw so that the TSE rests against both valve sleeves - Silver plated - Made in Bavaria / Germany EUR 58.00 - See more - Buy online