EXCELLENT QUALITY - The straight ruler is made of good quality plastic, which is shatter-resistant. It’s flexible and can be bent, but not 90 degrees. The ruler is slightly thicker making them more durable. It is designed with a slanted edge for the refinement of lines drawn. DOUBLE-SIDED MEASUREMENT - The graduations are marked on the side of the plastic ruler. The smallest unit of measurement in the metric system is 1mm, while on the other side is 0.0625 inch in the imperial system. It can measure objects up to 12 inches or 30 centimeters. SEE-THROUGH LOOK - The transparent look not only allows you to clearly read scale in both inches and metric markings on the ruler, but also allows you to clearly see the numbers and letters on the page. With the clear plastic ruler, you can easily trace objects. WIDELY USED - The plastic measuring ruler is suitable for all ages. It is an indispensable measuring tool for designers, architects, craftsmen, etc. The ruler provides you with accurate measurement values and can help you draw straight lines. WORRY-FREE PURCHASE - If you have any dissatisfaction with our 30cm plastic ruler within 30 days after receiving the product, you can contact us for a refund. Feel free to email us and let us know if you have any questions or feedback about our product. We are dedicated to providing you a satisfactory shopping satisfaction., Manufacturer: MUKCHAP