YAMAHA Yamaha Mouthpiece 7D4d Short For Cornet [Overview] • High-precision mouthpiece made with the latest computer-controlled processing machines. Smooth attacks and easy control. • The inner rim diameter is small, flat, and wide, making it durable. It has a bright and rounded tone, and is especially easy to play in the high register. • Rim Inner Diameter: 16.24 (mm) • Throat Diameter: 4.10 (mm) Related products are also available. #CircleOfUsedClothingAndMusic_MusicalInstrumentEquipment Instant purchase is welcome!! Feel free to ask questions or comment. Jupiter Keilwerth