When push comes to shove and you are lost in the wilderness, will you reach for some chintzy piece of plastic made in a sweatshop? Or will you reach for an instrument conceived and trued in the backcountry of Wyoming? It's at that moment you learn the difference between a toy and a tool. Includes great features such as the all new O.S.S. alignment system, on map meridian lines, reversible slide scale, map magnifier, mid-hinged sighting mirror, protective case, and clinometer. Dimensions: 3" x 4.7" x 0.8". Wt: 2.5 oz.