Product Description Material: Aluminum League Dimensions: 6.6*1 cm key ring diameter: 2.9 cm color: gold+silver Quantity: 4 pieces Content of the package: 4 pieces * survival whistle 1. 【Great this survival whistle is an excellent tool for outdoor activities such as camping, fishing, hiking, hunting, rescue of emergency. The strongest sound, double pipes can reach 120 decibels, can be listened to by distant people. 2. 【Signal】 : If you lose contact with your friends in the mountains and the phone has no signal, you can whistle And then stay where you are. You are and you are waiting, waiting for your friend to be saved. 3. 【Fort and durable】 Metal whistle, aluminum alloy makes the whistle resistant, sure confirmed. The tube does not have an incorporated pea, it is not modeled or produces bacteria. because of the pea. You can use it in any environment with dusty or dirty water 4. 【Small and light】 : can be easily transported to a key ring, comfortable and practical, to be hooked; to
