Whistle is Made from ABS plastic, this multifunction whistle combines three functions- whistle, compass and thermometer with a nylon neck strap. This fun survival tool is small enough to fit in your pocket. You can wear it on with the attached neck strap lanyard.Perfect for camping, hiking,hunting, safety program, emergency, travel and other outdoor activities. It's an ideal giveaway gift for your next promotion event and self promos. 2.5" L x 1.2" W