25cm Circle Protractor 360 Degree Protractor Ruler Math Geometry Tool for School Classroom Office Drawing Measuring

Round protractor is thick and practical and not easy to break. 360 degree circle measuring tool, with a protractor to draw the desired figure. The protractor is highly transparent, easy to read the centimeter scale on the ruler, and easy to measure. 25cm Circle Protractor 360 Degree Protractor Ruler Math Geometry Tool for School Classroom Office Drawing Measuring. Features: Round protractor is thick and practical and not easy to break. 360 degree circle measuring tool, with a protractor to draw the desired figure. The protractor is highly transparent, easy to read the centimeter scale on the ruler, and easy to measure. Full round protractor can be used in homes and offices, students and teachers in schools. Multifunctional circle template is suitable for painting, measuring, homework, technical drawing and so on. Specifications: Component: Plastic. Outer Diameter: about 34.5cm/13.58. Inner Diameter: about 25cm/9.84. Package Includes: 1 Pc Round Protractor. note: Please allow 1-3cm erro