General description The 6X Marine Ruler is designed for precise mapping and drawing tasks. It allows users to draw graphs and lines accurately, indicating bearings and courses with ease. The ruler is operated by two hands, each holding a ruler, which move in parallel to achieve the desired positioning. Technical specifications Size: 450 mm Material: Plastic Color: Transparent Measurement allowed error: +/- 1-3 cm Usage To use the Marine Ruler, follow these steps: Apply appropriate force to remove the static hand-foot. Push the moving feet with one hand while alternating movement with the other hand. Ensure both feet move in parallel to reach the required position. Alternate movements to avoid static foot displacement. Other information Package contents: 6 * Graphic parallel ruler. Note: Light reflection and different displays may cause the color of the item to differ slightly from the actual product.