This is a mouthpiece for French horn. There are stain-like marks on the outside, but they are not in a place that would affect playing, and I believe the inside is in a clean condition with no dents. It has a standard depth and a large inner diameter. It will be disinfected and cleaned before shipping. Manufacturer: JK Model Number: 1DM A1 Retail Price: ¥17,600 Inner Rim Diameter: 18.0mm Bore Size: 4.2mm Cup Depth: Medium