Practical Outdoor Emergency Survival Reflective Signal Mirror Hiking Camping First Aid Supplies Adventure Mirror ToolProduct Name: signal mirrorSpecification: 57*57*7mm(reflective mirror)Material: acrylicFeatures:☆ It is especially suitable for long-distance communication in the field and sending out reflective survival signals; ☆ With aiming function, the signal transmission is accurate and fast; ☆ When the weather is clear, the optical signal transmission can reach more than 100 kilometers; ☆ Can also be used normally when it is cloudy or at night when there is light; ☆ Can be used as a mirror in ordinary times; A front view mirror signal is an option in any survival rescue kit. One of the five main components of outdoor survival is a signal-generating device. Survival experts around the world have a consensus that everyone should wear a front-view signal mirror and whistle when engaging in remote outdoor activities. Quantity: 1pc