Measure Up to Excellence! 📐 Crafted from high-grade aluminum for long-lasting use. Experience supreme accuracy with sharp graduations. Laser etched for easy reading and error-free measurements. Perfect for architects, engineers, and students alike. 100% money-back guarantee for your peace of mind. 30cm length Laser etched precision Durable aluminum The Cosswe Metal Scale Ruler set includes two 30cm aluminum triangular rulers featuring 12 metric scales, designed for precision and durability. With laser-etched markings for easy readability and a 100% satisfaction guarantee, this tool is essential for professionals in architecture and engineering.