This is a conch shell made under the supervision of a Yamabushi priest. How about using it as a bear-deterrent whistle for mountain climbing! Regarding the production, it has been thoroughly cleaned, disinfected, and processed, but it is a natural product. Please refrain from purchasing if you are sensitive or seeking perfection. Regarding transactions, no claims and no returns are accepted. It is also listed on other sites, so please understand that it will be removed from sale once sold out. SPEC Wooden mouthpiece with Kinran decoration, blowing hole diameter 22mm The taper of the mouthpiece is deeply cut and a 10mm pipe is inserted, making it relatively easy to produce sound. Length: Approximately 36cm Width: Approximately 16.5cm Weight: Approximately 1,181g