Features: Compatibility: Scale map are suitable for MGRS, USNG, or other metrybased coordinate system. Scale: Coordinate scale protractors are widely used by military andnavigator to mark map being measured, for 1:25,000, 1:50,000, 1:100,000, 1:250,000 map. Easy to read: Topographic map scales thecompass reads degrees andmiles. High quality material: Transparentcoordinate scale is made of high quality plastic material, durable, durable, wear resistant, long servicelife. Wide application: suitable for land, sea navigation or other adventure activities. Specifications: Material: Plastic Size: Approx. 127x127mm/5x5in Thickness: 1.2mm Package Includes: 1x Topographical Map Scale note: 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.