Silva Starter 1-2-3 Compass. Enlarged ergonomic base plate designed for smaller hands. The larger rotating capsule with 5 degree dial graduation easier to read a map and plan the course. With inch and millimeter scales. Lanyard hole on base plate for string attachment. If your a beginner, the starter model 1-2-3 compass is a great tool for working with maps and orienteering. Its base plate is designed especially for children's smaller hands. it easier to read a map and plan the course. Inch and millimeter scales are provided for mapping or plotting. Plus, a lanyard hole on the base plate makes for easy carrying. Silva started 1-2-3 compass 2801290.