This TruArc 5 Baseplate compass makes intensive map work a cinch with a map magnifier to ensure you see every detail. The oversize baseplate is ideal for accurate triangulation. FeaturesTruArc Global Needle tilts up to 20deg for balanced use worldwideTool-free declination adjustment is simple and fast to orient magnetic north to true northMeridian lines on vial assist during pre-trip planning when aligning with map grid linesInch/millimeter scales for accurate and effective map workMap magnifier helps with the smaller details on any mapHigh visibility cling for enhanced performance in low light; can be removed to facilitate map use2deg resolution azimuth ring provides accurate readingsFSC-certified and recyclable packaging