Jo-Ral B7 Bass Trombone Cup Mute – Adjustable for Optimal Sound

The adjustable Jo-Ral B7 Bass Trombone Cup Mute is ideal for professional trombone players seeking a deep, melodious sound. This bass trombone mute features a neoprene rubber liner, eliminating unwanted vibrations and securely holding the mute in place. For an optimal fit, simply adjust the mute to the desired length, ensuring a tight seal and rich cup sound. For a custom fit, the corks can be filed for extra precision.