High Peak Orienteering Compass With Ruler 120cm
A transparent plastic ruler and compass built to help you determining the directions of the world, and determining azimuth and position on a map. It has a rotating shield and the tip is immersed in a non-freezing liquid and 2 graphs for converting the map scale into distance in kilometers. Blade diameter: 43 mm. Transparent plastic is benefical because it can be overlaid on a map and easily read.