Welcome to Deer Creek Official Store where we strive to provide our customers an array of products that satisfy demand for quality and efficiency. Buy our products from Shopee Mall in a worry-free manner as we guarantee 100% authenticity. Shopping can't get any easier than this, so start today! Product information: Size:7cm x 2.7cm x0.7cm Color: Green Material: Plastic Plastic survival whistle is "Everyday carry" item that you should always bring anywhere you go especially while doing outdoor activities like camping or hiking. This whistle have 3 chamber which produces high frequency echo sounds that can attract people surround if you are dealing with an emergency situation. This whistle is very light weight and easy to carry.