Smooth edges and standard dimensions, Perfect for kids and students, It is a useful measuring tool for students, Suitable for math education, Classroom teaching, Class, School, Office, Home etc. – Made of hard plastic, very light and easy to carry. – Smooth, convenient to use, easy to read. – The plastic protractors are the common shape protractor, its universal, you can applied to settle the math problems frequently. – Suitable for painting, measure, homework, and technical drawing.
