HUMES & BERG 120B Red/White Trpt/Tbone Derby Mute

• Also known as a “Hat Mute”
• It’s felt lined and practically indestructible. Should not dent or crack.
• It’s corrugated built-in edge for hand maneuvering derby over and under the bell in any direction.

Invented in 1935, stonelined are the finest mutes available. They play perfectly in tune, are easy blowing, and provide a wonderful tonal coloring. The formula and process for lining them is a long-held secret. There are many models of stonelined mutes.