New-Stone-Lined Mute ST-167 for Tenor-Trombone, Mannie Klein Practise Mute

New-Stone-Lined Mute ST-167 for Tenor-Trombone, Mannie Klein Practise Mute The ST-167 from New-Stone-Lined is the main Practice Mute model for the tenor-trombone. Despite with the increase in resistance this mute enables free and easy blowing. Musicians are now able to practice in a hotel room, warm up before a gig without disturbing anyone.