Humes & Berg HB120B Stonelined Derby Trombone Red/White Mute

HB120B Stonelined Derby Trombone Red/White Mute
Full big quality Derby sound. Play your horn all the way in or half way in. Its felt-lined and indestructible. Wont dent or crack. Its corrugated built-in edge for hand maneuvering derby over and under bell in any direction. Produced a spectacular showing.