Features Multi-function Triangular Ruler and Protractor: Enhance work efficiency with a versatile tool that combines the functionality of a ruler and protractor, saving time and effort in woodworking projects. Clear Laser Scale with Long Service Life: The wear-resistant and non-fading laser scale on the ruler body ensures durability and longevity, providing accurate measurements for an extended period. Smooth and Safe Angle Polishing: Each angle is polished through a special process, ensuring a smooth aerofoil that won't damage the workpiece, adding to the tool's professional quality. Convenient Conversion Table: The attached conversion table on the ruler aerofoil allows for quick and easy measurement and reading, streamlining woodworking tasks. Dual Metric and British Scale: Featuring a double-sided scale for metric and British measurements, this aluminum alloy ruler offers versatility and ease of use for woodworking and carpentry projects. Specification: Item Type: Triangular Angle Ruler Material: Aluminum alloy Color: Blue Ruler Thickness: Approx. 4mm / 0.2in Product Size: Approx. 305 x 305 x 430mm / 12 x 12 x 16.9in Package List: Item Type: Triangular Angle Ruler Material: Aluminum alloy Color: Blue Ruler Thickness: Approx. 4mm / 0.2in Product Size: Approx. 305 x 305 x 430mm / 12 x 12 x 16.9in Package List 1 x Triangular Angle Ruler