This is a conch shell made under the supervision of a Yamabushi (mountain ascetic) priest. It's a portable size for mountain climbing, and can be transformed into a whistle by attaching a whistle (see photo 5). How about using it as a bear deterrent whistle? This is a discounted B-grade item with scratches and chips! Please blow it! 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. It is also listed on other sites, so please understand that it will be removed once sold. Regarding transactions, no claims and no returns are accepted. SPEC Wooden mouthpiece, blowing hole diameter 21mm The taper of the blowing hole is deeply cut and a 6mm pipe is inserted, making it relatively easy to produce sound. Length: Approximately 32cm Width: Approximately 11cm Weight: Approximately 364g