A traditional mirror sighting compass commonly used by serious compass users such as hikers, mountaineers, backpackers and hunters. A mirror sighting compass should be your choice when you must determine direction over long distances. With the mirror tilted to a 45-degree angle, you can check your direction by looking at the bezel in the mirror while sighting in the correct direction of travel. Because you needn&&';;t lift your eyes from the compass in order to look into the terrain, the direction determined with the Silva 1-2- 3 SystemA(R) becomes more accurate. Guide features DryFlex(TM) grip for easy handling and comes with a use-anywhere declination scale inside the capsule. The base plate offers map-measuring in inches and scales of 1:62.5k mile & 1:24k USGS scale. The red/black north-south lines in the capsule bottom ensures easy and safe settling. The scales and markings in a clear contemporary font combined with lots of transparency in the baseplate makes navigating easier. The needle is made from finest Swedish steel with high quality magnetic features. A go-anywhere tool for serious compass users Detachable lanyard with safety release Map measuring scales of 1:24k, 1:62.5k mile, inch (1/20th) DryFlex(TM) Rubber grip allows easy handling of the compass/great grip Turnable housing usable with the SILVA 1-2-3 SystemA(R) Declination scale inside the capsule to simplify the calculations required Mirror sighting when you must determine direction over long distances Night use / luminous markings enable night time navigation up to 4 hours once activated by daylight/flashlight Robust material withstands tough treatment and conditions Red/black N/S lines in capsule ensure easy and safe settling Waterproof