【High Quality】Folding rulers are made of high quality plastic, durable and lightweight, can avert scratching the finger 【Size】The straight rulers are when folded it is 15cm/6 in, when unfolded, it reaches 30cm/12 in total length,convenient to carry and stored in pencil case or school bag 【Transparent Design】The ruler is bright in color, with a transparent design, using standard printing technology, not easy to wear, smooth edges, clear centimeter scale and accurate measurement, very convenient to read the scale 【Multiple Functions in One】Transparent foldable rulers are designed with clear centimeters scale, corresponding to the number of inch and small holes are convenient to mark. The junction is a protractor that can be measured to 180° 【Wide Use】30cm transparent ruler can draw straight lines, square, triangle and other patterns, suitable for school, home, library, study room