Features 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 HIGH ACCURACY: Thicken ruler design, make ruler stable and accurate. The square protractor help you draws good horizontal lines while sliding the rule along the edge of your work 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 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 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 Specification: Item Type: 3D Multi Angle Measuring Ruler Material: Aluminum alloy Size: Approx. 112 x 85 x 79mm / 4.41 x 3.35 x 3.11in Angle: 45 or 90 degrees Use: Suitable for circular materials, three dimensional workpieces, square wood, pipes, etc. A complete angle woodworking tool Features: Aluminum alloy material, lightweight and long lasting, comfortable to touch Thickened design, not easy to shift during use, reducing errors Accurate measurement, easy to operate Ideal for DIY, engineers, carpenters, and home use How to Use: Direct installation and use Package List: 2 x Angle Ruler 2 x Screw 1 x Wrench Package List 2 x Angle Ruler 2 x Screw 1 x Wrench