About Humes & Berg 10_81230 Trombone Cup Mute
Willie Berg invented Stonelined Mutes in 1935. They are the finest Brass Instrument Mutes available in the World. Sonelined Mutes play perfectly in tune and are easy blowing. Included in the many Stonelined Mute features that allow the outstanding colours of sound in the secret formula used to line each and every Stonelined Mute.