Foldable ruler bar (extends to 317 mm): gives extra reach when you need it, then folds flat for compact storage. Ideal for tight toolboxes, pockets, or on-site carry without taking up space. Embedded strong magnet: secures the extension rod when folded and during use so parts stay aligned and won’t rattle or fall off. This improves repeatability and reduces time wasted re-adjusting the tool. Adjustable positioning tool: choose the angle you need for marking, measuring or transferring dimensions. Simple, stable angle selection helps you make precise, consistent layout lines. Concealed stainless‑steel drawing needle with threaded tail: stores safely in the ruler when not in use and screws into place for transport. When fitted, it functions as a scribe or line-drawing tool for accurate marking on wood, metal or other materials. Key benefits Saves time and space: extend to 317 mm when measuring, fold away when finished. Secure and stable: magnetically locked extension and firm angle positioning reduce measurement errors and movement. Built-in scribe for cleaner, more precise marks without carrying extra tools. Compact and easy to carry for tradespeople, hobbyists, and technicians. Materials and performance Drawing needle: stainless steel for durability and reliable marking performance. Magnetically secured extension and threaded needle ensure consistent alignment and safe storage. Practical use scenarios Carpentry and cabinet fitting: measure and transfer dimensions in narrow spaces, then use the scribe for exact cut lines. Tiling and flooring: set angles and mark tiles with the adjustable positioning tool, fold and stow between cuts. Metal layout and light fabrication: scribe reference lines directly from the ruler and maintain stable measurements with the magnetic lock. What you get A compact, foldable measuring and marking tool with a 317 mm extendable reach, magnetic stability, selectable angle positioning, and a threaded, concealed stainless-steel scribe—designed to reduce tool clutter and improve marking accuracy on the job.