Rothco Orienteering Ranger Type Compass Ranger Compass Is Made of Durable Lightweight Plastic Outdoor Compass Features A Sighting Mirror, Liquid Filled Luminous Pointer, And A Large Easy-To-Turn Dial Ruler Measurements Along The Sides To Be Used On Your Map In Conjunction To The Map's Scale To Determine Distances Survival Compass Measures: 4 3/4" (7 3/4" Open) X 2 5/8" X 3/4" Transparent Base And Magnifying Glass