2 side measuring ruler: dual Side measuring ruler centimeter scale is on one edge of the ruler and inch scale is on the other edge; They can meet your different measuring needs Translucent color allows for a clear view of numbers and letters on the page. With the clear Mathematics ruler you can measure an object easily The 6 inch ruler can be stored in a pencil case or pencil box. So it s convenient for student to do mathematics and drawing works.The plastic straight ruler is made of good quality plastic durable and sturd.