2pcs Adjustable Angle Ruler for Square Tubing Multi-Angle Measuring Tool for Welding & Fabrication Versatile Drawing Tool: This multifunctional drawing ruler is specifically crafted for square tube rounding and precise right angles, enabling users to draw accurate lines effortlessly without the need for cutting. *Size Options: Offered in two adjustable sizes of 0-65mm and 20-80mm, this tool caters to various square tube dimensions, making it for a wide range of projects and user preferences. *Two-way Drawing Capability: The innovative design facilitates drawing from both the front and back, allowing for precise results from different perspectives, thus enhancing overall productivity and efficiency. *45-degree Angle Guide: Featuring dual 45-degree drawing capabilities, this ruler empowers users to execute intricate designs with ease, professional-grade angle creation every time. * For Durable Construction: Constructed from resilient materials, this drawing tool is built to last, providing reliable performance that meets all your drafting needs while withstanding the rigors of daily use. Specifications: Part Name:Square Tube Round Corner Drafting Ruler Material:Plastic Size:20-65mm, 20-80mm Color:Orange Available Types: 20-65mm, 20-80mm or 20-65mm+20-80mm