This straight ruler is made of , which can withstand use. Features the plastic material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. This straight ruler will make the drawing and measurement easier and smoother. Features -Color:Assorted Color -Material:Plastic -Size:30.90X3.00X0.16cm/12.14X1.18X0.06in - Meet different needs, multiple colors rulers will satisfy most people's preferences. Kids and students will also be delighted that they have so many lovely acrylic rulers to choose from. - Made of high grade plastic, it makes the numbers and graduations on the ruler very clear. Easy measurement to make your work faster and more efficient. - Wide range of applications: The perfect measuring tool for artists, designers, architects, engineers, students, etc.; suitable for classrooms, schools, offices, homes, and more. - The centimeter and millimeter scales are on one side of the ruler, and scale is on the other. For basic survey work and drafting needs. - Fine workmanship, and sturdy, not easy to wear or tear, you deserve to have one. Package list: 32 x rulers