Generic Military Bearing Prismatic Lensatic Sighting Compass with Pouch & Neck Strap,Reference table base for estimating Distance Slope,Professionally Liquid-Dampened, Full Metal Body with Bearing Prism / Lens System,for Outdoor activities like Camping, Hiking,Scouting Prism lens system enables you to get your directions from the side: 2nd scale on the side of the fluid-damped compass disc; Prismatic readings avoid errors caused by mirror readings and potential parallax; Liquid-filled prevents excessive oscillation of the magnet needle; Durable Metal body with plastic back, Works well in all weather conditions; Great for backpackers, campers, hikers, hunter, geologists, conquerers and other outdoor activists;