1、[Wide Range] This sliding line ruler has a measurement range of 0 to 100mm, with accuracy of 0.1mm and reading value of 0.1mm, ensuring precise measurements. 2、[Secure Locking Knob] The locking knob can fix the slider, preventing any movement. Simply loosen counterclockwise and tighten clockwise to keep the ruler securely in place. 3、[Clear Scale] The scale is etched onto the ruler, ensuring that it will not wear or fade over time, ensuring clear and easy to read measurements. 4、[Premium Stainless Steel] Made of thickened stainless steel, this parallel ruler is resistant to bending and damage. The chrome plated surface and polished edges result in a smoothly and refined finish. 5、[Convenient and Precise] This parallel marking ruler is very convenient for woodworking tasks, allowing for accurate and precise marking.