Features: Experience precise and durability with our alloy engineering ruler, crafted from alloy materials for accurate measurements in professional engineering applications. Designing with a rustresistant and wear resistant finish, this ruler features clear, easy to read marking and a lightweight, portable designs suitable for various environment. For engineers, architects, designers, and students who require precise measurement tool for their projects. Perfect for use in construction, interior designs, engineering drawing, and academic research, offering versatilities across multiple professional setting. Enhances your toolkit with this essential measuring instrument, ensuring reliable performances and accuracy for all your detailed tasks. Specifications: Component: Alloy Size:Approx.85.6x54mm/3.37x2.12inch Color:Black Package Includes: 1pcs Measuring 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 coloring of the item. Thanks for your understandings.