"Tools 4 Winds Straight Metal Mute for Tenor Trombone, made of aluminium with wood cap, very nobel, exellent intonation, High Quality kork is used to get a perfect fit in your instrument and all parts are lasercut"
"Soulo Mute Tenor Trombone Aluminium Straight Mute SM6378, by Soulo Mute combines the traditional straight mute sound with a ground-breaking, patented aerodynamic shape, which improves ALL the typical issues associated..."