Features: High precise 2 in 1 aluminum alloy carpentry square combines angles ruler and straightedge for woodworking tool, ensuring measurement accuracy within 0.5mm error. Aluminum construction with anodized antiglare finish and upgraded triangular scale enables 0-180° marking in precise measuring tool. For woodworkers, DIYer enthusiasts, and users needing clear visibility during detailed measurement tasks. Perfect for furniture crafting, home renovations projects, and professional woodworking workshops requiring 45°/90° angles verification. Corrosion resistant surfaces maintains calibration accuracy through heavy use, functioning as both measuring instrument and right angles guide. Specifications: Component: Aluminum alloy Parameters: Angles measurement accuracy up to 0.5 degrees Package Includes: 1 Set Square Ruler note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.