World's Smallest Horned Shells (Set of 7) These are conch shells processed to resemble conch horns. They have a whistle installed, so they make a cute "peep" sound when blown. How about using them as bear deterrent whistles for mountain climbing! Regarding production, they have been thoroughly cleaned, disinfected, and processed, but they are natural items. Please refrain from purchasing if you are sensitive or seek perfection. They are also listed on other sites, so please understand that they will be removed when sold out. Regarding transactions, no claims and no returns are accepted. SPEC Length: Approximately 3.5~7cm Width: Approximately 1.5~4.5cm Weight: Approximately 2~27g