These angle measurement protractors can be applied for home, office, school students and teachers. It is very convenient to use, and it is good for completing your work, and a great present idea for kids. Besides, it’s also an essential tool for any toolbox. Feature - ColorTransparent - Material: Plastic. - Size: 10x10x0.2cm/3.9x3.9x0.1inch. - Small size makes it easy to put on your books, notebooks and pencil case. - The black numbers are clear and easy to identify, then you can read quickly with great accuracy. - Half round shape: the plastic protractors are shape protractor, it’s universal, you can use it to settle the math problems frequently. - Thick and protractors: this clear plastic protractor is thick enough, thus they are not easy to snap. - Suitable for painting, measure, homework, technical drawing. You can send them to your friends and classmates as . Package list: 15 x protractor