Features: *High-quality material: Made of high-quality material, not easy to deform and break, reusable and durable. *Easy to carry: Small and light, you can hanging around the neck or put it in your pocket. *Great Gift: This safety-whistle is a great gift for friends on Christmas, Thanksgiving, birthdays and other festivals. *Wide Application: The safety-whistle can be used as a safety-whistle in outdoor activities and a survival-whistle, for camping, hiking, swimming, boating, and other outdoor sports, self-defenses, emergency survival,etc. *With Keyrings: The safety-whistle is design with stainless steel, which make the safety-whistle portable. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Material: Aluminum Alloy Size: 67mm Package List: 1 x Aluminum Alloy-Whistle