Back To School: Useful Stationery To School Students Clear White Metric Parallel Multi-purpose Drawing Rolling Ruler School Supplier Description: This Rolling Ruler is a multifunctional drawing tool for making parallel lines hatching etc. Frequently used formulas and unit conversion. Measure in inches and centimeters and draw quadrants squares circles angles crosshatching and vertical and horizontal parallel lines quickly and easily. Functions as a compass horizontal ruler straightedge protractor circle template and angle template all in one. Specifications: Product Name: Rolling Ruler Material: Plastic Main Color: Clear White Measurement Range: 30cm 12 Inch Total Size: 31 x 6.2 x 2.1cm/ 12.2 x 2.4 x 0.83 (L*W*T) Weight: 85g Package Content: 1x Rolling Ruler