Coghlan's Sight-Grid Signal Mirror Features:

• The Sight-Grid Signal Mirror combines the power of glass mirror reflection with acrylic durability.
• An acrylic case surrounds the glass mirror protecting it from breaking, keeps it afloat if dropped in water and has a lanyard hole.
• The lightweght signal mirror utilized Sight-Grin Targeting Mesh for aiming reflected light flashes with pin-point accuracy on a target up to 25 miles away 
• Weight:  1 oz (38g)
• Size 2" x 3" (5.08 cm x 7.62 cm)