Made of EVA and durable plastic. The coil ring has sufficient elasticity and can be comfortably worn on the wrist, while the stainless steel ring can secure your key. The whistle is loud, you can definitely hear it. They are perfect for coaches, emergency situations, safety, lifeguards, sports games, hiking, children's party gifts, and more. It is colorful, fashionable, and the brand logo can be printed on the product
