Feature:1. High Accurate: Clear scale, precise 15cm scale, concise and practical, suitable for students' drawing.2. Exquisite Workmanship: Glossy and not hurting hands, easy to draw and write.3. Two in One: Compasses and straightedge two in one, integrated functions and easy to carry.4. Adjustable Compass Point: Move the compass point to freely adjust the size of the circle.5. Easy to Use: Just press your finger to adjust the radius slider to achieve precise measurement.Specification:Item Type: Compass RulerMaterial: PlasticFunction: Two in One Compass and Ruler, Integrated Functions, Easy to CarryProduct Size: Approx.17 x 3 x 0.6cm / 6.7 x 1.2 x 0.2in (Manual Measurement, There May Be Slight Errors) Package List:1 x Drawing Ruler