This liquid filled map compass comes with instructions explaining the features of the compass, how to read a compass, how to follow a compass bearing, setting a return course, orienting your map and taking a compass bearing from a map. Perfect for scouts, schooling, camping, hiking, orienteering and more. The outer ring of this stable-needle compass can be rotated to set directions and for plotting. The clear back makes it ideal to be used for presentations with an overhead projector. Diameter: 1-7/8" (48mm). Comes with safety lanyard and instructions. Filled with 100% white mineral oil. SKU 95161.