Description 180 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:As Shown -Material:Plastic -Size:24.50X12.50X0.20cm/9.63X4.91X0.08in - This Half Circle Protractor is made of 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, so you can draw or paint effortlessly. - You can give it as a gift for your kids to learn math, an easy and convenient save their time. - Smooth in surface without any burr, safe and comfortable to use, will not hurt your skin. This Half Circle Protractor is made of 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, so you can draw or paint effortlessly. You can give it as a gift for your kids to learn math, an easy and convenient save their time. Smooth in surface without any burr, safe and comfortable to use, will not hurt your skin.