Marine Parallel Ruler with Brass Arms,15 Inches Marine Navigation Ruler for Navigational Plotting Nautical Charts Mapping Points — Open-Box, 12% Off

Precision Navigation: Our marine parallel ruler is crafted to assist sailors and navigators in plotting precise courses on nautical charts. Whether you're cruising, sailing, or navigating through challenging waters, this tool ensures accuracy every time.

Durable Construction: Engineered with premium acrylic and featuring durable brass arm joints handles, this nautical ruler is built to withstand the rigors of marine environments. Its robust design ensures longevity and reliability, making it an essential companion for any maritime journey.

Versatile Usage: From plotting courses to measuring distances, our parallel ruler offers versatility in navigation tasks. Its multifunctional design allows for efficient and effective navigation planning, enhancing your overall sailing experience.

Easy to Use: Designed with user-friendliness in mind, this marine parallel ruler is easy to handle and maneuver. Its intuitive design simplifies the navigation process, allowing sailors of all skill levels to utilize it with ease.

Compact and Portable: With its compact size and lightweight construction, our marine parallel ruler is easily portable, making it convenient to carry aboard any vessel. Whether you're exploring coastal waters or embarking on a transoceanic voyage, this tool is a space-saving essential.

Parallel rulers are used to plot direction on your nautical chart. They are, essentially, two straight-edges hinged so that they maintain the same angle. By alternating the moving edge, and securely holding down the non-moving edge, you can move the rulers about the chart while still maintaining the same angle.