JK Exclusive 5CL Yacht Car Trombone Mouthpiece - Large Shank Ceramic Rim / Resin Rim Silver-plated except for the rim Anti-metal allergy specification Purchased about 15 years ago and used for about a year. Used on a tenor bass trombone as a measure against metal allergies, but it has been in storage since I switched to a titanium IP mouthpiece. I hesitated to sell it, but I'd like someone to use it. The resin rim, for better or worse, mellows the sound, and you'll notice a considerable difference from a metal rim. This is a used item, so please understand that there may be minor scratches and stains before purchasing. Purchase price: Approximately 30,000 yen The box is no longer available, so it will be wrapped in cushioning material and shipped in a cardboard box.