Features a single sided thickened steel plate structure for enhanced anti bending strength Perfect for construction site and factories where sturdy tools are required Beyond straight lines measurement, it serves as a drawing aid for complex designs Ideal for artists and engineering drafters to improve efficiency Stainless steel materials excellent rust resistance, extending product life Suitable for long term use in humid environments like outdoor construction or coastal areas Great for students and teachers in daily educational and learning activities This ruler ensures accurate and measurements Ideal for engineers and designers in precise tasks, solving issues of deformation and inaccuracy common with rulers, Manufacturer: Lilinzhi