High-quality aluminum alloy material: This 3D aluminum bracket is made of high-quality aluminum alloy. It not only has anti-rust properties, but also high hardness and excellent toughness. It is lightweight and portable, allowing you to take measurements anytime, anywhere. Detachable design Specially designed 3D bevel square, unique and innovative. Just turn the screw once and it turns into a 3D measuring tool! The included right angle ruler and bevel ruler are convenient and practical, making your measurement work more flexible and versatile. Accurate scale, easy to read The laser-engraved scale is accurate to the nearest millimeter, clear and easy to read, and the maximum measuring length is 112 mm (4.41 inches). The carpenter's ruler can be easily moved to measure 45 or 90 degree angles. The square protractor has functions such as measurement, correction and marking, which can effectively improve the efficiency of woodworking and save time. Wide range of uses: The hollow design can help you grasp and measure the materials you need, suitable for three-dimensional objects such as wood, metal pipes, marble, etc. Whether you are a carpenter, engineer, DIY enthusiast, designer or architect, this multi-angle measuring ruler can meet your different measurement needs! 3D Carpenter Ruler Set Each set includes 1 3D multi-angle measuring ruler, 2 screws, 1 wrench. The size of the 3D aluminum square is 11.2*8.5*7.9cm. This multifunctional woodworking measuring ruler is an essential tool for any woodworking project. Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.