TrumCor Trombone Classical Cup Mute

I love this cup mute.  Gives me great response all over the horn, plays well in the valves, comes apart the fit in my mute bag.  I also like the sound: less "metallic" more "woodsie", if that makes sense.  Works well for me on classics and pops.

From TrumCor:

This cup mute is suitable for symphonic, studio or solo playing. Its adjustable cup adapts to all bell sizes, and allows for a great variety of tonal flexibility. The Classical Cup is responsive and in tune throughout all registers.

Tenor weight - 6 ounces. Bass weight - 10 ounces