Signal Mirror

A signal mirror is a lightweight, reflective survival tool designed to send distress signals or communicate over long distances by reflecting sunlight. It typically features a highly polished surface (often glass or metal) with a sighting hole in the center that allows users to aim reflected light precisely at rescue aircraft, search teams, or other people. Signal mirrors are essential emergency gear for hikers and backpackers because they can be seen from miles away and require no batteries or fuel to operate, making them reliable tools for emergency signaling in remote wilderness areas.