Rothcos Orienteering Ranger Type Compass is made of lightweight and durable plastic to help last your next outdoor venture. Ruler graduations along the sides used in conjunction with a maps scale will help determine distances. Featuring a liquid filled luminous pointer magnifying glass a transparent base and a sighting mirror Rothcos survival compass is built easy to use and yields accurate results. This ranger compass measures 4 3/4 (7 3/4 Open) X 2 5/8 X 3/4 and has a large easy-to-turn dial.