Features: The Multifunctional Aluminum Alloy Folding Ruler combines portability with accuracy , featuring a compact 304x40mm folded size and lightweight 313g design for on the go measuring tasks in workshops, construction site , or classrooms. Engineered with adjustable locking nut , angles markers, and concealed scribing needle, this foldable ruler ensures accurate angles drawing and safe operate while its detachable fence screw enables hands easy stability during measurements. Ideal for enthusiasts, professional carpenter, and engineering students needing stable measurement solution that balance industrial grade durability with everyday practicality. Perfect for workshop layouts, home renovation projects, and STEM education environments where space saving tools with centimeter accurate hole markings simplify straightedge operations. This accuracy measuring tool revolutionizes dimensional tasks with its integrated angles guidance systems and tool easy component customization, making complex layouts effortless across technical and creative applications. Specifications: Component : aluminum alloy Dimensions: about 304x40mm/12x2inch after folding Package Includes: 1xFolding Ruler note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.