Thank you for viewing! This is the Yamaha standard model "HR-32C4"! It's a very well-balanced mouthpiece, loved by beginners to intermediate players. I bought it new on Amazon last year for about 7000 yen! Features of this model: • Easy to produce a large volume: This model has a larger inner rim diameter than the standard 30C4, allowing you to produce a rich volume. • Excellent articulation (attack): Thanks to the relatively flat rim shape, the sound doesn't get muddy and you can articulate clearly with a "pa" sound, which is its biggest appeal. • Controllability: Made precisely with Yamaha's latest technology, you can play smoothly from low to high notes. Recommended for people who: • Are beginners who have just joined a brass band club • Feel like they "want to produce more volume" • Want to make their articulation clearer and improve the sharpness of their sound (intermediate players) • Are considering stepping up from the school's equipment to their "My mouthpiece" • Scratches/Dents: There are some scratches on the box, but there are no dents on the main body. • Cleaning: It has been washed and disinfected, so you can use it immediately. Inner rim diameter: 17.48mm, Throat diameter: 3.98mm