Dimensions: 8.3*8*11.2cm/3.27*3.15*4.41 inches Multi-angle drawing: The semi-circular pointer triangle ruler is designed with a reference hole of 1/16 inch in diameter, allowing for easy drawing of parallel lines. The multi-angle measuring ruler also contains a semi-circular pointer for drawing angles ranging from 0 to 180 degrees. Complete the layout lines and carpentry work easily. Pointer design: A semi-circular pointer is adopted, which is convenient for precise measurement and multi-angle marking. Just loosen the silver nut, adjust the pointer to the Angle you want, and then tighten it. The operation is simple and there is no need to rotate the woodworking square. High-quality material: The 3D multi-angle measuring ruler is made of high-quality aluminum alloy and processed by anodic oxidation, which is smooth and has bright colors, ensuring safe use by users under harsh working conditions. The scale is clear and easy to read, with extremely high visibility, ensuring clear and long-lasting measurements. It is one of the indispensable tools in your toolbox. Lightweight and versatile: The woodworking square is lightweight and portable, easy to use, and can be put in a pocket. In addition, 3d squares are easy to assemble and disassemble. Suitable for engineers, carpenters, and DIY enthusiasts, whether you are measuring, marking, or calibrating. Wide range of uses: Suitable for DIY, woodworking engineers, construction engineers, etc. It can be placed in the pocket of an apron to improve work efficiency. This is ideal for you.