Features: Multi Functional Design : The right Angled hole marking ruler integrates multiple functions for various drawing and measuring needs, enabling accurate marking and positioning with ease. Ideal for architects, engineers, and woodworkers. Premium Aluminum Materials : Crafted from aluminum alloy, this ruler offer excellent strength and resistance to deformation, ensuring long term accuracy and stability in professional use. Lightweight & Portable : Weighing only 214-281g, it provides comfortable handheld operations and easy portability, making it perfect for students, designers, and engineers on the go. Accurate Graduations : Features clear and accurate scale markings for quick measurement readings, eliminating errors and enhancing efficiency in drafting and design work. Wide Applications : Suitable for architecture, engineering, technical drawing, and woodworking projects, this versatile tool is a must have for every designers and craftsmen. Specifications: Component: Aluminum Alloy Weight: 214-281g Length Approx.25cm/9.84inch Length Approx.30cm/11.81inch Length Approx.40cm/15.74inch Package Includes: 1Pcs Right Angled Measuring Ruler note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.