Quantity: 2 pieces material: plastic The color green Size: 11.5 x 11.5 cm. Weight:: 50g Due to lighting effects, monitor's brightness/contrast setting, the color tone of the picture may be slightly different from the actual project. Material of High Quality: The round ruler is made of high quality thick plastic, which is thick and durable, not easy to break and lasts longer than ordinary material rulers. Precise angle easy to get: the plastic protractor is made of transparent material, the information on the protractor can be read clearly. The protractor ranges from 0 degrees to 360 degrees, with a clear tick mark every 10 degrees. 16 Circle Pattern Sizes: This protractor is unique in that it has 16 circle pattern sizes. The additional circle template can solve the problem of drawing circles quickly and easily. Essential measuring tool: A protractor is an essential angle measuring tool that can solve both the problems of study and work. For example, the angle problem in the arithmetic workbook, or the angle problem the child encounters in the study. Wide Application: The universal circular protractor can be used at the home and office, students and teachers for drawing, measuring, homework, technical drawing and more.