Feature:1. FINE WORKMANSHIP: Made of sturdy aluminum alloy after oxidation treatment, this saddle shaped layout ruler is durable, deformation resistant, practical, rust resistant, and corrosion resistant.2. STANDARD SCALE: The metric scale and corner engraved by laser on both sides of the oblique cutting T ruler are clear and accurate, making it convenient and easy to read values or make marks during use.3. EASY TO USE: When measuring, there is no need to reverse the body, just slide the mark to the left and right at an angle of 45 or 90 degrees.4. SPECIFIC APPLICATION: When sliding the ruler along the hole bottom diameter at the edge of the triangle hole ruler, the set square can help you draw a perfect horizontal line.5. EASY CARRYING: With a small size and a lightweight as well, this ruler set is easy to carry for different scenes use, use at will to help with your accuracy work!Specification:Item Type: 3D Multi Angle Measuring RulerMaterial: Aluminum AlloyColor: Red, black, blueApplication: Suitable for circular materials, three dimensional workpieces, square wood, pipelines, etc..Package List:3 x Square Ruler 3 x Angle Ruler 3 x Hex Wrench 6 x Hex Screw