"A classic scouting compass design with modern day features, the BruntonTruArc 3 Base Plate Compass helps you get where want to go. This time-tested, no-frills design delivers classic compass performance from a design that is compatible across the globe. Featuring the TruArc Global Needle system, the TruArc 3 offers tool-free declination compensation (allowing for east or west declination settings to +/- 180) to ensure worldwide compatibility. Metric and standard scales on the TruArc 3's baseplate makes map navigation quicker and more efficient. 2 resolution increments. Measures: 2.5"" x 3.5"" x 0.5"". Weight: 1.1 oz. Manufacturer model #: F-TRUARC3. Versatile base plate compass that works anywhere around the globe Classic, no-frills design with modern day performance TruArc Global Needle system - tool-free declination compensation to +/- 180 Metric and standard baseplate scales 2 resolution increments"