Thank you for viewing. This is a JK French horn mouthpiece for sale. I used it a little after purchasing it, but it didn't suit me, so I gave up on it. There are minor scratches, but the condition is good. Rim inner diameter: 17.5mm Cup depth: Depth between 2DM and 2EM. Silver plated Currently, it's in short supply and the price is rising, so please consider it soon.