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 bearing
Balanced for northern hemisphere
Adjustable declination correction
Liquid filled capsule for stable operation
Mirror for sighting bearings and signaling
Sighting hole and notch for accurate bearings