Description: Material: PlasticDimension(Approx): 3.5 x 6 x 2.1cmMeasurement Range: 30cm、 12 InchMain Color: ClearFeatures:100% brand new and high quality. Multi-function --- Can be use as a compass、 horizontal ruler、 straightedge、 protractor、 circle template and angle templatePracticability --- Combination Rolling Rulers、 Ideal for drawing vertical lines、 parallel lines、 charts、 graphs、 circles、 3-D drawings etc...Affordable --- Ideal for students、 artists、 and designersPackage included: 1 x Rolling Ruler SKU 054-040 JI