3Pcs Folding Straight Ruler 30Cm Drawing Measuring Tool, Cornflower Blue

Office ruler is made of aluminum alloy, the surface is anodic oxidation to prevent rust and corrosion and is not easy to break. It is durable and sturdy, has a shatterproof design for long lasting use. The edge of the geometric ruler is smooth, and the four corners are rounded, so you don't have to worry about hurting your hands. The ruler is foldable for convenient carrying and storage. With a center-swivel design and angular scales, you can easily draw angles. A folding ruler is a great tool for drawing and measuring in everyday work and study. When folded it is 6 inches, if unfolded, it reaches 12 inches in total, making it a perfect tool and stationery for children, teachers, and architects. It can be used in math classrooms, teacher teaching, class, office, home, outdoors, etc. Please do not store the ruler with metal or sharp objects, so as to avoid scratches on the ruler, which may cause inaccurate scales.