DOUBLE SIDED MEASUREMENT - There are scales on both edges of the plastic ruler to measure, they are metric system 30 centimeters and imperial system 12 inches, which can meet your different measurement needs. TRANSPARENT - The transparent look of these metric rulers not only allows you to clearly read scale 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 measure objects. PORTABLE - These 12 inch plastic rulers can be easy to use, carry and store, it can be put into most boxes and backpacks, and it is lightweight, is portable for your to take them out. WIDELY USED - The plastic measuring ruler is an indispensable measuring tool for designers, artists, architects, engineers, craftsman, craft lovers, etc., and they are widely used in many places, such as offices, workshops, tailor shop and so on. WORRY-FREE PURCHASE - If you have any dissatisfaction or feedback with 30cm clear plastic ruler after receiving the product, you can contact us. We are dedicated to providing you a satisfactory shopping satisfaction., Manufacturer: MUKCHAP