Protractor, Plastic, 15 cm, 1 Each

The United Scientific® Protractor, Plastic by United Scientific is a standard 15 cm semi-circle plastic protractor for measuring and drawing angles. Its light plastic body makes it easy to supply as a class set. Math and physics teachers use it for geometry, ray diagrams in optics, inclined-plane angles and vector diagrams at middle school, high school and introductory college levels.