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Material: ions :< Measuring Range: 30cm/12inch Feature: - Multi-function --- Can be use as a compass, horizontal ruler, straightedge, protractor, circle - template and angle template - Practicability --- Combination Rolling Rulers, Ideal for drawing vertical lines, parallel lines, charts, graphs, circles, 3-D drawings etc... - Affordable --- Ideal for students, artists, and designers Specifications : Material: Plastic Main Color: Clear Measurement Range : 30 cm / 12 inch Package weight：92G Package Dimension: 308 x 60 x 27 mm / 12.13 x 2.36 x 1.06 inch(L x W x H) Package Weight: 90.0 G / 3.17 Ounces Package Dimensions (L*W*H): 23*65*316 MM / 0.91*2.56*12.44 Inches Retail Packaging: Yes, Colored Box Package Include: 1 x Parallel Multi-purpose Drawing Rolling Ruler