They can meet your different measuring needs:
Translucent color allows for a clear view of numbers and letters on the page;
with a clear Mathematics ruler, you can measure an object easily
The plastic straight ruler is made of good quality plastic, durable and sturdy; They are designed to be used for more than 2 years.
The 6-inch ruler can be stored in a pencil case or pencil box. So it's convenient for students to do mathematic and drawing works.