Braille School Braille Ruler Blind Learning Supply Triangular Protractor Set
Specifications: Including 300 x 15mm blind ruler, 198 x 99mm protractor, 30 degree triangular plate and 45 degree triangular plate. Blind Protractor: Approx. 198 x 99mm / 7.8 x 3.9in. 1 x Protractor.