To get the exact measurement, use our sleek clear plastic ruler that is made of top-quality plastic. The clear ruler is perfect for school, office, and home to rule those straight lines. The ruler is made from clear durable plastic and will stand up to the demands of everyday use. It is made of high-quality plastic which makes it durable, strong and a great measuring tool. This ruler features inches on one side, centimeters, and millimeters on the other. It is absolutely crystal clear which makes it easy to see your work underneath. It has a clear and accurate scale so that you can measure your items accurately. This essential tool is available in 30cm and is easy to carry in either your briefcase or backpack when you're on the move. This clear ruler is a useful measuring tool for artists, designers, architects, engineers, students and so on, suitable for classrooms, school, office, home, etc.