2Pcs Circle Protractor Drafting Tools Protractor Measuring Tool 360-degree Math Geometry Set for Classroom

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About This One of the commonly used mathematical tools,Suitable for students,teachers,engineers,designers,angle measurement and so on,it can not only use by ourself,but also sent t o our students,friends protractor is from 0 to 360 degrees, and clear color allow you see the words, letters, figures on page through the protractor, it makes measuring easy protractor has a swing arm, whose angle is quickly and easily identified in the desired position, you can fix the angle to plot, suitable for setting bevels, draw radial lines, measuring and marking angles Protractor and ruler of angle measure tool are precision etching, the readings are clear and accurate, easy to read, and convenient for your use Plastic 360 circle measuring tool for precision, in use. Excellent portable tool, easy to storage. Swing arm provides straight-edge guide for drawing angles Show more