The perfect professional folding rule for the real professionals. Ideal for intensive use in all conditions. The folding rule is calibrated according to European standards and has high-quality metal hinges with built-in steel springs that provide ultimate reliability, extra strength and perfect spring action. The folding rule has 3 mm thick beechwood slats and has a special coating that can withstand any adverse external influences during use, such as moisture, sunlight and mechanical wear. Accuracy class III.