Bass clarinet ligature. It's a Harrison gold reverse ligature. The gold-plated finish is characterized by a powerful and bright tone. You can get a gorgeous sound and an open blowing feel. This is a reverse ligature. I used it for several years, but I'm selling it because I switched to a different ligature. It still plays perfectly fine. There are no cracks, and the screws tighten normally. I bought it for about 11,000 yen at the time. I will ship it in this clear case. Thank you for your consideration.