The SOL Sighting Compass allows you to take precise navigational readings while keeping your eye on the trail in front of you. For improved accuracy, adjust the declination with the included tool. With inch, millimeter, and ratio measurements on one tool, you can get accurate readings on any map. Use the magnifying glass to identify key waypoints and the glow-in-the-dark features for twilight navigation. Align your adventure with the index lines and orientation lines. Keep around your neck or attach to gear with the included breakaway lanyard.Clear Navigation Liquid filled, adjustable bezel, index lines, and orienting arrows keep you headed in the right direction.Sighting Mirror Allows for precise bearings and doubles as an emergency signal mirror.Declination Adjust the declination with the included tool to improve accuracy.Night Visibility The bezel, waypoints, index line, magnetic needle, and orientation arrows glow in the dark.Rules & Ratios Edges have inch and millimeter rulers with ratios for use on any map.Extended Base Plate with Magnifier Easily read map details and plot route.Clinometer Measure slope angles.Intended for use in the northern hemisphere only.Package Size: 4.2" x 2.5" x 0.8"Package Weight: 2.5 oz.Item #: 0140-0030