Charles Leonard, Inc. Protractor, 4" Multi Use, Clear Plastic, 12/Box(Pack Of 576)
Features an open center and sharply defined graduations. 4" plastic multi-use comes with triangles in the center. 4" Clear plastic multi-use protractor is ideal for all young mathematicians. Protractor features triangles in center and 4" ruler at the base which allows the student to easily identify angles from 0 to 180 degrees. With sharply defined graduations this protractor is easy to read and helps minimize visual errors.