Description: 【Multifunctional Design】: This survival whistle combines seven essential tools in - a whistle, compass, magnifying glass, flashlight, thermometer, reflector mirror and storage compartment. It's great for various outdoor adventures and emergency survival situations, offering comprehensive practical functions. 【Portable and Lightweight】: With its compact design and light weight, this tool is easy to hang on your backpack, belt or keychain for convenient carry. It's suitable for a variety of outdoor activities such as hiking, camping and exploring. 【High Volume Whistle】: The powerful survival whistle design ensures that the sound can travel long distances. In an emergency situation it can quickly send out a distress to ensure your safe outdoors. 【Accurate Compass】: The built compass helps you quickly determine direction when outdoors to ensure you never get lost, a reliable tool for wilderness navigation. 【High Brightness Flashlight】: Equipped with a small LED flashlight that is suitable for use at night or in low light conditions providing ample illumination to enhance the convenience of outdoor activities. The magnifying glass can be used for emergency fire starting outdoors while the thermometer allows you to environmental temperature. Specification: Material: Plastic Size Chart: 9.8cmx2.9cm/3.86inchx1.14inch Package Includes: 1 Camping Survival Whistle (4 Pack) Note: Please allow slightly errors 1-2cm differences due to manual measurement.