Features The manual ruler provides accurate measurements through the aluminum chain, providing appropriate tension for drawing straight lines parallel to another line or reference points. Good Transparency: This parallel navigation ruler has good transparency, does not cover too much information, and allows you to view the entire page. Accurate Scale: The measuring ruler has an accurate scale and is easy to read, making it a reliable tool for drawing and measuring. Easy to Draw: The nautical ruler is adjusted through stable aluminum chains, which are smooth and durable, allowing for easy drawing of reference parallel lines. Size Information: This ruler is approximately 45 cm long and is well suited for charting tasks. Product Information Product Name: Parallel Ruler Color: Transparent Material: Acrylic Size: 450 mm Packing List: 1 x Parallel Ruler Note: 1. Due to extended shipping times, items may be damaged during transit. If damage occurs, please through the official platform before leaving feedback, and we will assist with resolution. 2. Size may vary by 1–3 cm due to manual measurement. 3. Color may vary slightly due to differences in monitor displays.