Kutsuwa STAD Arithmetic Triangle Ruler, 10-Pack, HA12A-10P

Color-coded corners for easy understanding of angles Easy-to-read numbers used in textbooks Edge markings convenient for learning "parallel" and "perpendicular" Grid markings convenient for reading "parallel" and "perpendicular" Made of durable, highly transparent methacrylate resin Includes a case for storing the triangle Includes name stickers [Specifications] Triangle compatible with elementary school math textbooks! [Feature 1] Edge markings convenient for learning "parallel" and "perpendicular" [Feature 2] Easy-to-read numbers used in textbooks [Material] (Triangle) PMMA, (Case) PVC [Size] (Right-angle triangle) H70 x W120 x D1.5mm, (Right-angle isosceles triangle) H60 x W120 x D1.5mm