Professional Mirror Compass Improved Sighting Mirror Sapphire-jeweled bearing Liquid filled for steady needle Individually balanced 2 deg. graduations Luminous night markings Colored lines helps avoid parallax errors in dark Built-in declination setting Lanyard & instructions MC-2DL Navigator w/luminous bezel ***Exclusive to IRL Supplies - We add on a bubble level to the Suunto Mirror compass (at no added charge) This helps the user keep the compass perfectly level of improved accuracy