Description This protractor is good plastic material with high strength, which is not easy to deform or break, support long service life. 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:Multi -Material:Plastic -Size:12.20X6.70X0.10cm/4.79X2.63X0.04in -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. - plastic, safe and sturdy, not easy to break, the small protractor is durable and practical. -Good workmanship, smooth surface, no burrs or acute edges, you can use the 180 degrees math protractor with confidence. 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. plastic, safe and sturdy, not easy to break, the small protractor is durable and practical. Good workmanship, smooth surface, no burrs or acute edges, you can use the 180 degrees math protractor with confidence.