TISUR Titanium Emergency Whistle, Survival Safety Whistles for Coaches, Dog Training, Hiking

Titanium material: acid, alkali, and corrosion resistant, not easily deformed at high temperatures, suitable for use in extreme environments Suitable for skin contact: Made of safe materials that do not rust or fade, can come into contact with the skin, and can be used by mouth Single-Tube Loud Sound Design: Easy to blow, up to 120+ decibels. A great tool for signaling for help in outdoor emergencies No Ball Design: Functions even when exposed to water or dust. the metal whistle core is pressed into the whistle tube securely, so it won't fall off even if you poke it hard Light as a Feather: Weighs only 5.3 g, compact and exquisite. Equipped with a long rope and a small key ring, it can be used as a hanging neck or keychain for easy access at any time