A compact mirror compass designed with practicality in mind. Fixed declination correction. Easily enchangeable capsule. Jewel bearing sighting notch. CM or inch scales. Detachable snap lock lanyard Mirror lid locks open at various angles Size: 56 x 84 x 15 mm / 2.2in x 3.3in x0.6in (with the lid closed) The MC range of mirrorpasses provides an invaluable tool for those who place a particular premium on accurate and reliable directional measurements; for example surveyors miners architects rescue patrols hikers boaters and the military. The declination adjustment system standard throughout the range is especially useful when working in areas of large maic variation while the sighting notch provides superior accuracy.FEATURES Two zone system: 1 Jewel bearing: 2 Detachable snap lock lanyard: 3 Mirror locks open at various angles: 4 Ruler: 5 Sighting hole: 6 Mirrorpass: 7 Baseplatepass: 8 Fixed declination correction scale: 9ATTRIBUTES Special Features: The declination adjustment system is especially useful when working in areas of large maic variation