The scale is clearly visible and easy to operate. For use withUTM, MGRSUSNG or other metricgrid based coordinate The multicoordinate position work ruler can helpcomplete geographic study and work tasks, which is very It can be used with other protractor. Protractormarked in 90° quadrants Coordinate Ruler, you can choose according to your needs. Small size allows you to keep it handy in your pocket light and portable, for use on mapswith scales of: 1:24000 1:25000 1:50000, Manufacturer: BOYANDM