Description:  10cm Plastic 360 Degree Protractor Ruler Angle Finder Swing Arm School Office    Features:      360 Degrees.   Clear plastic for precision.   High-quality and durable in use.   Suitable for school learning.   A great maths tools for students & school supils.    Material: Plastic Diameter: 10cm\/3.9'' Color: As shown   Package Includes:   1 x 360 Degree Protractor Ruler  Details pictures: