If you’re a beginner, the Starter Model 1-2-3 is a great tool for working with maps and orienteering. It's base plate is designed especially for childrens' smaller hands. The rotating capsule has a 5° dial graduation. Clear base plate makes it easier to read a map and plan the course. Inch and millimeter scales are provided for mapping or plotting. A lanyard hole on the base plate makes for easy carrying.