Westcott 180° Protractor calculate easily with it’s see-through quality to align on papers and diagrams. This 4″ protractor has a sturdy plastic construction for durability and does not corrode after exposure to outdoor elements. 4″ clear protractor 180 degree and 4 inch protractor Easy to read numbers Clear transparent plastic Durable plastic Effortlessly measure angles from both sides Perfect for use in the home or classroom.
