Description:Adopting compact size and clear scale design, this angle ruler is convenient for you to carry and easy to read.Thanks to swing arm and 360 degree design, it can better reduce the measurement error and is practical to use.Made of high quality plastic material, it is durable and anti-rust.The diameter of this ruler is 10cm.It is suitable for work, school, student, office and so on.Item Name: ProtractorMaterial: PlasticFeatures: 360 Degree, Portable, PracticalSize Details: Diameter: 10cm/3.94" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:2 x Protractor(Different Color)