Features: The round protractor is thick and practical and not easy to break. The protractor is highly transparent, easy to read the centimeter scale on the ruler, and easy to measure. The diameter of the round hole is suitable for various drawing scenarios, and the problem of drawing a circle can be quickly and easily solved. The circle template 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 Size: about 11.6cm/4.57'' Package Includes: 5 Pcs/Set Round Protractor note: Please allow 1-3cm errors due to manual measurement. Due to the difference betweeen different monitors,the picture may not reflect the actual color of the item.