Precisions Meets Versatility: With its innovative L-shape design and precisions-cut markings, the ruler enables effortless parallel and vertical line drawing, making it perfect for a wide ranges of application from framing and paneling to intricate joinery work. L-Shaped Structure for Stability: The L-shaped body provides exceptional stability and control, allowing you to guide the ruler smoothly along your workpiece without slipping or twisting. Perfect for ensuring straight, accurate lines. Pass-Through Holes for Enhanced Versatility: Featuring built-in L-shaped overline holes, the ruler allows you to pass a pencil or marking tool through, enabling continuous and uninterrupted line drawing acrosss multiple surfaces or along the edges of a workpiece. Durable Construction for Longevity: Crafted from high-quality aluminum alloy, this ruler is built to withstand the rigors of daily use in any workshop environment. Its rugged design ensures years of reliable service and accurate measurements. Easy-to-Use for All Skill Levels: Whether you're a seasoned craftsman or just starting out, the ruler's intuitive design makes it incredibly easy to use. Simply align, clamp (if needed), and draw. Perfect for quick and accurate marking on any project. Specifications: Color: Red + Black Material: Aluminum Alloy Length: 200mm/300mm(optional) Item Size: 200mm: 200 * 108mm/ 7.9 * 4.3in 300mm: 300 * 108mm/ 11.8 * 4.3in Package Size: 260 * 220 * 80mm/ 10.2 * 8.7 * 3.1in Package Weight: 200mm: 155g/ 5.5oz 300mm: 190g/ 6.7oz Packing List: 1 * Woodworking Scriber