Item Type: Survival Whistle_x000D_Material: ABS_x000D_Color: As Pictures Shown_x000D_Weight: Approx.11g/0.4oz 1Durable Material: This whistle adopts high quality ABS materials, wear resistance and long service life, has more refined appearance. 2Quality Assurance: Strict quality control and quality assurance, high safety factor, can be used with peace of mind. 3Simple Design: Shape is small and mini, lightweight and portable, does not take up space, easy to carry, and can be placed anywhere. 4Emergency Scenes: Can be used to alert people in distress, great safety equipment for backpackers, divers, skiers, sailors and many other outdoor activities. 5With Lanyard Design: Easy to use, can be easily hung around the neck or on hook when not in use, there is clip design at the tail, which can be randomly clipped anywhere.