This protractor is made from good ABS material with high strength, which is not easy to deform or break, support . Simple and classic design, easy to operate. Besides, this portable protractor is lightweight for using in office, school, architecture, etc. High-visibility scale number, will not easy to fade. Features -Color:Assorted Color -Material:ABS -Size:15.00X8.60X0.10cm/5.89X3.38X0.04in -With a measurement angle range of 0 to 180 degrees, you can easily and quickly measure objects by using this protractor for math lesson. -Simple colors make numbers and letters clearly visible, the protractor for school is practical for your work and life. -Suitable for students, teachers, designers, architects and engineers, and also widely used for drawing and making notebook margins. -Made from plastic, safe and sturdy, not easy to break, the small protractor is and practical. -Good workmanship, smooth surface, no burrs or acute edges, you can use these 180 degrees math protractor rest assured. Package list: 5 x Protractors