Practical USNG Coordinate Scale MilitaryProtractor TransparentNavigation Topographical Map ScaleFeatures:Compatibility: Scale map are suitable for USNG, or other metrybased coordinate system.Scale: Coordinate scale protractors are widely used by andnavigator to mark map being for 1:25,000, 1:50,000, 1:100,000, 1:250,000 map.Easy to read: map thecompass reads degrees andmiles Transparentcoordinate scale is wear resistant, long servicelife.Wide application: suitable for land, sea navigation or other adventure activities.Specifications:Size Approx. 127x127mm/5x5inThickness: 1.2mmPackage Includes:1x Topographical Map ScaleNote:Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.