Picket Brass Cornet Mouthpiece British 3 Picket Brass, which produces various models for trumpet, trombone, and other players active in America. This is an expressive cornet mouthpiece incorporating innovative ideas and techniques. The British model is popular for its warm sound and outstanding responsiveness. It is especially recommended for brass band players. ≪From the importer's website≫ British 3 Cup Inner Diameter: 16.8 Throat: #16 Cup Depth: Medium Cup Shape: V-Cup Retail Price: ¥27,500 It's only been used for test playing, so it's in very good condition.