1、HIGH ACCURACY: Thicken ruler design, make ruler stable and accurate. The square protractor help you draws perfect horizontal lines while sliding the rule along the edge of your work 2、STRONG ALUMINUM ALLOY: The 3D measuring ruler is made of aluminum alloy, which has the characteristics of high hardness, light weight, erosion resistance, and rust resistance 3、EASY TO OPERATE: There is no need to reverse the body when measuring, just slide to mark the right and left 45 or 90 degree angle. Accurate scale and simple operation 4、APPLICABLE SCENARIO: 3D multi angle woodworking square ruler can be used for marking lines, measuring 45 and 90 degree angles, easy to disassemble, and widely used in woodworking 5、WIDE APPLICATION: Miter triangle ruler is suitable for measuring round materials, three dimensional workpieces, square wood, pipes, etc., convenient and practical. Suitable for engineers, carpenters, and decorators