Silent mute for euphonium. It's over 10 years old, and the studio amp is an older model, but there are no problems with its use. In addition to the included cable, I will include another cable. The item is old, but it hasn't been used very often, so it's relatively clean for its age. There are scratches on the mute itself, but I think they are within the range that doesn't affect use. Please check the detailed photos and consider purchasing.