B0007LAHQ4 Jo Ral TRB-6L Large Tenor Trombone Adjustable Cup Mute

This all-aluminum cup mute produces a smoother, richer sound for tenor trombones
Lined with a neoprene rubber rim that eliminates vibrations
It is easily installed by simply moving the cup up to the desired length for a tight fit
The corks may be reshaped for optimal acoustical placement
The Large Bell Model is for trombones with a bell larger than 8.5