M-7Green Green Light pocket magnifier for reading aviation charts at night, with 4x magnification with 1.25” square single power low distortion acrylic lens that provides clear sharp image. (Lens Available with or without 8x bifocal lens) a replaceable green wavelength hi-intensity bulb to help preserve night vision and provide maximum contrast with aviation charts and their magenta colors. Makes a ideal portable pocket magnifier for first, sailors, pilots, truck drivers, first responders, military crews, anyone who might need to look and read a map at night, and wishes to preserve their night vision.
Made In The USA