The Acme Tornado Slimline Black Whistle is a lightweight and durable safety whistle suitable for outdoor activities such as camping, hiking, and backpacking. Made of plastic and with a decibel output of 117dB, this whistle is designed to be heard from a distance. With a compact design and a sleek black color, this whistle is perfect for safely signaling in various outdoor environments. Manufactured in the United Kingdom by Acme, this whistle is a reliable tool for emergency situations in the great outdoors.