9 Inch Protractor (Model 23-4301-0) & 23 Cm Protractor (Model 23-4401-8)
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The 9-inch Protractor, model 23-4301-0, and 23 Centimeter Protractor, model 23-4401-8, are braille protractors designed for use by individuals who are blind or have low vision. The instruments are made of metal and feature a cursor and a ruler embossed in inches or centimeters. The protractors display angles from 1 to 190 degrees.