This conch shell was made under the supervision of a Yamabushi priest. It's a portable size for mountain climbing, and could be used as a bear whistle! Regarding the production, it has been thoroughly cleaned, disinfected, and processed, but it is a natural item. Please refrain from purchasing if you are sensitive or seek perfection. It is also listed on other sites, so please understand that it will be removed once sold out. Regarding transactions, no claims and no returns are accepted. SPEC Wooden mouthpiece with Kinran decoration, blowing hole diameter 20mm The taper of the mouthpiece is cut deeply and an 8mm pipe is passed through, making it relatively easy to produce sound. Length: Approximately 36cm Width: Approximately 15cm Weight: Approximately 570g