Features Durable Engineering Plastic: Made of high-hardness engineering plastic, this tool is resistant to falls and durable, making it easy to carry and ideal for heavy-duty use. Multiple Angle Measurements: The right angle positioning ruler features 45° and 22.5° measurements, facilitating easy and precise angle measurements for woodworking and other projects. Clear Scale for Rapid Measurement: The clear scale design ensures durable wear resistance, allowing for rapid measurement and easy reading of data, enhancing efficiency. Simple and Accurate: With a simple structure and high accuracy, this tool is easy to use and suitable for a wide range of applications, providing practical assistance for various projects. Practical Marking Tool: This auxiliary locator angle holder is a practical tool suitable for woodworking projects and DIY hobbyists, enhancing precision and efficiency. Ultimate Woodworking Angle Ruler Revolutionize your woodworking projects with yunyi's 10pcs 3in 90° Right Angle Auxiliary Positioner. Crafted from durable engineering plastic, it offers exceptional durability and fall resistance. Its clear scale allows for rapid and accurate measurement, while its 45° and 22.5° positioning rulers simplify angle measurements. Package List 10 x 90° Angle Ruler