360 degree Protractor measuring tool for home teaching, school classroom, office, etc. Wide uses. A must-have for architects builders, electrician, teachers, interior designers, engineers, students, etc. Easily meet your different needs, bring more conveniences, give you a pleasant using experience. Features -Color:Assorted Color -Material:Plastic -Size:11.50X11.50X0.10cm/4.52X4.52X0.04in - This Circle Protractor is made of premium plastic material, not easy to crack or break, support long term use. - Small in size and light in weight, easy to carry it in your bag to use it anytime and anywhere. - Designed with accurate and clear scale, provide you high precision, can draw or paint effortlessly. - You can give it as a your kids to learn math, an easy and convenient way to save their time. - Smooth in surface without any burr, safe and comfortable to use, will not hurt your skin. Package list: 10 x Protractors