A Mute Tenor Trombone Practice; practice mute for tenor trombone/french horn; offers strong damping, precise response and clean intonation, making it easy to practise even in sensitive environments such as at home, in a hotel or on the road; the screw-apart design makes the mute particularly practical; Easy to transport and fits easily into the case of a trombone with a detachable bell; the perfect companion for musicians who are often on the move or want to practise regularly while travelling