Professional Mirror Compass. The advanced navigation compass. When venturing out into unknown territory, these sighting compasses offer precision navigation with a variety of carefully engineered and dependable features for challenging conditions. 2.56 x 3.98 x .71 inch.High grade steel needle with jewel bearingBalanced for northern hemisphereAdjustable declination correctionLiquid filled capsule for stable operationMirror for sighting bearings and signalingSighting hole and notch for accurate bearingsNon-luminescent bezelN/A
