It's easy to read a map, set bearings and plan a trip with the Polaris as there's large numerals at every 20° mark, a clear base plate, inch and millimeter rules and a 1:24,000 scale.
2° dial graduations
Declination scale for quick adjustments of map bearings to field headings
Bright hi-vis dial with hi-contrast markings
Inch & millimeter rulers
1:24,000 map scale