The plastic rulers in this section come in two standard sizes and a vast amount of different colors. The reading style for these rulers is both Fractional (inches) and Metric (centimeters), each oriented left to right. All of these rulers are made of a sturdy .030 tk plastic with 1/8″ rounded corners. The 2″/5cm rules are 1″ wide, while 6″/15cm rules are 1 3/16″ wide. These rulers are sold in sets of 10.