Using high-precision manufacturing technology, the double-sided ruler with millimeter and centimeter scales is easy to read The ruler is made of high-quality stainless steel, will not rust or deform pitch. It is composed of a 300mm stainless steel ruler and an adjustable square head for more precise measurement. The measuring tool is a kit combined, one can handle multiple processes, making your workbench clean and tidy and saving space The combined measuring tool is suitable for measuring, marking, layout, etc. Note: The data is all measured manually, please allow 1-3cm error due to differences in light and display, there may be color differences, please refer to the 'actual item received.