Features • Precision Magnetic Scale: Features a magnetic stripe engraving for clear, easy-to-read measurements, ensuring accuracy in all your woodworking projects • Secure Locking Mechanism: The locking knob allows for smooth adjustments, keeping the caliper securely in place for precise scribing without slips • Durable Carbon Steel Construction: Made from high-quality carbon steel, this ruler is crafted for longevity and designed to withstand rigorous use • Low Maintenance Tool: Built to resist damage, this measuring tool minimizes the need for frequent replacements, making it a cost-effective choice for professionals • Reliable Performance: Engineered through professional manufacturing, this ruler delivers consistent accuracy and stability for all your woodworking needs Features: 1、Adopt magnetic stripe engraving, it has clear scale and convenient reading. 2、The locking knob can fix the slide of the caliper, loosen it counterclockwise and tighten it clockwise. 3、The product has fine workmanship without burrs, carbon steel forging, longer service life. 4、, not easy to damage, do not need frequent replacement, very convenient. 5、Profional manufacturing, which makes it have stable characteristic and high reliability. Specification: Item Type: Sliding Line Ruler Material: Carbon steel Size: Approx. 200mm / 7.9in Approx. 250mm / 9.8in Approx. 300mm / 11.8in Uses: Measuring marking marks, widely used in various types of mechanical procing marking Package List: 1 x Sliding Line Ruler Package List 1 x Sliding Line Ruler