An acrylic case surrounds the glass mirror protecting it from breaking, keeps it a float if dropped in water and has a lanyard hole. The lightweight signal mirror utilizes Sight-Grid Targeting Retro-Reflective Mesh for aiming reflected light flashes with pin-point accuracy on a target up to 25 miles away.

Click below for a quick video on how to use this item.
https://www.youtube.com/watch?v=wo_x-RQ1n0E&feature=plcp