Product Description
Brunton O.S.S. 30B (Orbital Sighting System Baseplate Compass). 4 1/4" x 3". Clear acrylic construction. Features Brunton O.S.S. alignment system, ergonomic baseplate with mag magnifier, tool-free declination adjustment, inch and mm scales with interchangeable scale cards, 2 degree resolution, on the map meridian lines and an extra long straight edge. Lanyard hole. Blue nylon lanyard.