"A classic military-style sighting compass, the Brunton F-9077 Lensatic Compass delivers the heavy-duty construction and long-range bearing ability you are looking for. Ideal for sighting and following bearings in the field, the F-9077 combines a liquid-dampened dial with a rugged machined aluminum housing for trustworthy durability. A true lensatic design, this compass features a flip-up cover with sighting wire and flip-up lens to take bearings accurate to +/- 5. Its long straight-side shape works great with maps, while the flip-down hinge makes it easy to stabilize for quick and accurate readings. Compass dial features luminous points for night readings. 2 resolution increments. Measures: 3""x2.2""x1.2"". Weight: 3 oz. Manufacturer model #: F-9077. Classic military-style sighting compass from Brunton A great tool for long-range bearings Liquid-dampened dial with luminous points for nighttime readings Rugged machined aluminum housing Flip-up cover with sighting wire Flip-up lens Takes bearings accurate to +/- 5 Long straight-side shape works great with maps 2 resolution increments"