When you are planning your route for a mission out in the field, you need a quick way to mark the map and get a clear vision of your location and the surrounding terrain. The Staedtler permanent map pens in assorted ink colors will be your trusty tool to make all the marks you need on your maps and any other surface. The four different colors of ink and the medium point of the marker make these pens ideal for creating fine lines across your maps enabling you to visually communicate to your companions the topographical details and paths to take or avoid. Whether you use map protractors for precise measurement of distances or if you simply need to mark the location of your various team members throughout the area, these permanent pens are extremely useful. These dry-safe pens can withstand drying even when left uncapped for a few days, so you can be sure they will be ready to use at all times.