Jo Ral Bass Trombone Adjustable Cup Mute - All Aluminum

For a deep, melodious cup sound, the adjustable cup mute is the ideal choice. It features a neoprene rubber liner that eliminates vibrations and holds the mute firmly in place. To adjust the fit, simply move the mute up to the desired length for a tight seal and smooth cup sound, filing the corks if necessary for an even tighter fit.