SOL Rescue Flash Signal MirrorThe SOL Rescue Flash Signal Mirror is made from unbreakable polycarbonate and features a retro-reflective aiming aid for accurate signaling. Visible over 30 miles! Target planes, helicopters, and distant search and rescue teams with the Rescue Flash Signal Mirror. The retro-reflective aiming aid enables you to signal targets from miles away, and the lightweight polycarbonate construction will not break if dropped Measures 3" x 2". Weighs .05 lbs.