Features: Discover precisions with our Square Tube Ruler, crafted from high quality stainless steel and for both straight and curved measurements, ensuring accuracy in every use. This innovative saves space and enhances portability, making it a essential tool for precise measurements in drawing and engineering tasks. For drawing enthusiasts, architects, designers, and students who require accurate straight and curved measurements in their projects. Perfectly suited for a variety of scenario including drafting, engineering surveys, architectural, and crafting, whether you're at school, office, or outdoors. With its construction and functionality, this ruler is your instrument for achieving result in any measurement task. Specifications: Material: Stainless Steel Size: A: About. 9.5x5.5x28cm/3.74x2.17x11.02in B: About. 7.8x8.2x23.3cm/3.07x3.23x9.14in Pattern: A/B Package Includes: 1pc Corner Drawing Ruler note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.