- Exquisite Craftsmanship: This lightweight parallel ruler for marine navigation is designed for portability and durability. Its superior craftsmanship ensures stable and reliable use on the go. - Flexible Operation: The ruler is user-friendly and adaptable. It allows you to easily follow your specific navigation requirements, making it suitable for both beginners and experienced navigators. - Functionality: Ideal for drawing azimuth lines and navigation lines, this parallel ruler also accurately measures azimuth line degrees and course line degrees during map operations. It is an essential tool for precise navigation. - Premium Materials: Constructed from high-quality copper and acrylic, the ruler features a polished pure copper spacer that resists oxidation and provides a stable measurement surface. This ensures longevity and consistent performance. Use Scenarios: 1. Perfect for sailors charting a course during a voyage, ensuring accurate navigation and safe travel. 2. A valuable resource for marine students practicing navigation skills, allowing them to develop precision in their mapping techniques. 3. An essential tool for professional navigators conducting detailed route planning and analysis, providing the accuracy needed for successful voyages.