Made from high impact plastic, with double frequency, it’s easy to emits a shrill, high-pitched sound, without having to strain to blow. With built-in clip and lanyard, it’s convenient to attach
to clothing, school backpacks, bag, pocket, water gear or equipment for quick access. Great basic whistles to have as part of a go-bag or emergency kit, for camping, boating, hiking,
biking, general survival all outdoor activities when you need to sound-off. Please do yourself a favor and buy a set of these to share with your friends. Hope we never need to use them in
an emergency, but handy to keep it with your survival kit.