3Pcs Straight Ruler 12Cm Both Sides Scale Bookmark Measuring Tool, Khaki

Office ruler is made of aluminum alloy, which is anti-rust and anti-corrosion and is not easy to break. It is durable and sturdy, has a shatterproof design for long lasting use. The children's ruler has smooth edges, and the four corners are rounded, so don't have to worry about hurting your hands. Both sides of the ruler are clearly marked for convenient use. In addition, it comes with a hollow pattern design that can be used as a bookmark. The small ruler is perfect for children and is a useful measuring tool in learning, it can be used in math classrooms, teacher teaching, class, office, home, 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.