High quality: Combination angle ruler is made of high quality stainless steel, strong and durable, lightweight, easy to use and operate, easy to carry, wear-resistant, not easy to rust, not deformed, and can be used for a long time . Multi-angle measurement: Carpenter square workable 90 angle measurement, 45 angle measurement. Household and craft applications. Can be used as a 45 degree miter, height or depth gauge. Separate Design: The ruler base and the ruler can be used separately with hidden markers. Save a lot of measuring tools, make the workbench clean and tidy, and use it very easily Double-Sided Ruler: Combination angle ruler double-sided graduation in millimeters and centimeters.The clear scale is easy to read and durable and is suitable for measuring, marking, layout, etc. Rendcqin Alloy Combination Square Ruler of zinc This combination square ruler is suitable for transferring dimensions, woodworking such as when used in your rafters, decks, stairs and roofs, metal working. Properties: One Case Made Of Durable Zinc Alloy A Stainless Steel Blade Clear Scale, Wear-Resistant Stainless Steel Needle Clear And Accurate Calibration 3 Kinds Of Minimum Scale Values: 1/8inch, 1/16inch And 1mm. Stainless Steel Ruler Is 2mm Thick Finely Polished Surface Fully Adjustable And Leveled Square Head