ROTATING AZIMUTH included making it a breeze to calculate true and magnetic course within seconds. Easily manipulate the bezel to find your course on any of the charts that match the included scales. THICK CONSTRUCTION of the plotter making it more rigid but still flexible enough to be easily manipulated without bending. 1.3mm thick plastic providing a substantial profile for the user. INCLUDED CARRY CASE made of strong PVC plastic to keep it protected for long years of use and travel. Easily travels in a flight bag with a kneeboard, headset, e6b, foggles, or other pilot gear/supplies you may have. CALCULATE TRUE & MAGNETIC COURSE using this plotter with the included magnetic variation scale used to convert true course to magnetic course. Easy convert to true course using this plotter and a sectional very quick. 8 FUNCTIONS included on this plotter. Measure in Nautical Miles (Front Side) and Statute Miles (Back Side) along with Sectional Scale (1:500,000) WAC Scale (1:1,000,000) and Terminal Area (1:250,000).