This Bell Airflow Activated DEER WARNING WHISTLE is a must-have for anyone who loves to drive through the countryside. With its lightweight design, it makes the perfect addition to any outdoor survival gear collection. The whistle emits a high-pitched sound that alerts deer and other animals to your vehicle's presence, helping to prevent accidents and keep you and your passengers safe. The whistle comes in a pack of two and is suitable for use on all types of vehicles. Its black color and compact size allow it to blend seamlessly with your car's design. Whether you're a seasoned hiker or a family heading out on a camping trip, this whistle is an essential piece of safety equipment that you won't want to be without.