The classic scouting compass with modern updates, TruArc 3 base plate compass is equipped with the TruArc Global Needle system in the characteristic form outdoorsmen have trusted for generations. Metric and standard scales, and tool-less declination compensation, plus no-frills reliability make this a must for everyones outdoor pack. Overall Dimensions 2.5 x 3.5 x 0.5 Weight 1.1 OZ 2 Degree Resolution Inch/CM Scales Global Needle