An essential safety tool for backcountry trekking, the Sight-Grid Signal Mirror from Coghlan's uses Targeting Retro-Reflective Mesh to aim reflected light flashes with pinpoint accuracy on targets up to 25 miles away. The lightweight signal mirror surrounds its glass mirror with an acrylic case to protect against breakage and keep it afloat if dropped in the water. It also has a lanyard hole for hanging around your neck or attaching to a backpack. It measures 2 x 3 inches, and weighs 1 ounce. Coghlan's makes the outdoors more comfortable and enjoyable with over 450 accessories for camping, hiking, fishing, and RVing -- from cooking gear to first aid kits, insect netting, firestarters, tent repair, and more.