Features: Precisions measuring aluminum alloy triangle ruler features 0 point positioning rods and double sided scale, eliminating measurement drift for accurate result in high accuracy tasks. Lightweight yet wear resistant construction combines quick releases adjustment rods, double scale cm/inch markings, and rotating alignment fences for versatile angles positioning and multi tool functionality. Essential for engineers, carpentry, and technicians requiring accurate measurement tools in woodworking shops, construction site, and precisions manufacturing environments. Optimizes workflow in cabinetry installations, structural framing layouts, and mechanical drafting projects through instantly calibration and double directional reference edges. Innovative double positioning rods enable bidirectional alignment, while knurled locking nut secure 15°/30°/45° preset angles for rapid repeat measurements. Specifications: Component:Aluminum Alloy Package Includes: 1Piece Triangle Ruler note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.