This is a horn made from a craft item, a cow's horn. When blown, it produces a sound similar to a conch shell. How about using it as a bear deterrent whistle for mountain climbing! Regarding the manufacturing process, it has been thoroughly cleaned, disinfected, and processed, but it is a natural product. Please refrain from purchasing if you are sensitive or seek perfection. Regarding transactions, no claims and no returns are accepted. It is also listed on other sites, so please understand that the listing will be removed once it is sold. SPEC Wooden mouthpiece, folk craft processed, mouthpiece diameter 23mm The taper of the mouthpiece is cut deeply, and an 8mm pipe is passed through, making it relatively easy to produce sound. Length: Approximately 44cm Width: Approximately 8cm Weight: Approximately 500g