I have various other items for sale as well. This is an extra-large Shugendo conch shell. It is approximately 41.5cm long and weighs 1056g. The hole of the mouthpiece is about 6mm. It has natural growth marks. There are no cracks. It's a beautiful and well-balanced extra-large Shugendo conch shell (^.^)♪♪♪ Please check the photos. How about having it as a companion for your life ❣️ I have confirmed that the conch shell's sound can produce five tones (Oto = wood and fire, two tones), (Koto = earth, metal, and water, three tones). It seems to be extra large and produces a good tone (^.^) Enjoy! ❣️♪♪♪〜 If you need a beginner's conch shell blowing guide, please write in the comment section. I will include it for free. I would appreciate it if you could take a look at my profile. The price is determined by the cost of the shell.