Horn Mouthpiece Holton SC American Shank Inner Diameter: 16.87mm Bore Size: 4.32mm Cup Depth: Shallow Rim: Medium Wide Current New Price: ¥14,960 This item has been stored for a long time but is unused. There is some blackening, but it does not affect playing. There are no dents. It has a shallow cup. This is recommended for those who want to easily play high notes, those of small stature, or elementary school students. This is considered a used item, so please purchase only if you understand this.