360 degree Protractor measuring tool compatible with home teaching, school classroom, office, etc. Wide uses. A must-have compatible with 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:Transparent -Material:Plastic -Size:9.50X9.50X0.50cm/3.73X3.73X0.20in - The scales on this Circle Protractor are not easy to fade, look clear even after used compatible with many times. - You can use this circle protractor to draw radial lines or measure angles, greatly saving your time. - With high accuracy scales, allow you to easily read compatible with your conveniences, which is practical to use compatible with daily work. - This protractor is suitable compatible with drawing, architectural design, woodworking, angle and length measurement, etc. - Fine workmanship ensure its practicability and durability, this circle protractor can companion you compatible with longer time. Package list: 5 x rulers