1. The ruler body is with high-quality aluminum alloy, and it is made with high-precision processing by laser technology. It is integrally formed without rust and deformation. 2. The corner base is made of aluminum alloy, which can be used for mobile multi-directional measurement. 3. Thick aluminum alloy ruler body, sturdy and , to falling and wear. 4. Used for woodworking measurement, capable of measuring at 45 degrees, 90 degrees, and other functions. Specifications: Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! size: 400mm Material: Aluminum alloy colour: Red Package Contents: 1 x woodworking ruler Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.