Material - The ruler is made of stainless steel, offering wear resistance and high hardness. The adjustable positioning block is made of copper material, smooth and resistant to rust. Feature - The locating block and the stainless steel ruler work together to enable convenient positioning and marking. Simply move the scale to the desired measurement and lock the screw. Application - This steel ruler is suitable for carpenters, engineers, and architects, ideal for drawing, measuring length and width, scribe marking, crafting, and other measuring tasks. Package Content - 1 x Metal Ruler, 1 x Scriber Block. The double-scale metal ruler has a smooth edge without burrs, clear markings, and accurate scale graduations for easy reading, suitable for both amateurs and professionals. Color: Silver Material: Stainless Steel Size: 200mm ruler Package Contents: 1 x 200mm ruler 1 x 26mm locating block The package includes only the items listed above; other products are not included. Note: Due to light reflection and differences in display screens, the color of the item in the image may vary slightly from the actual product. Measurement may vary by +/- 1-3cm.