| Product name | Ruler |
| Material | Plastic |
| Type of ruler | Ferrule |
| Promotional Ruler | Yes |
| Folding ruler | No |
| Length | 30.8*2.9CM |
| Weight | 52g |
| Shape | Rectangle |
| Usage | Learning tools |
Types of rulers
1.”Snake Ruler” is a ruler specially used to draw curves.
2.Triangle ruler is a right-angled triangle or isosceles triangle ruler, which is convenient for drawing parallel or vertical lines.
3.Slide rule: a calculation tool. Soft ruler: often used to measure parts of the human body.
4.Pull rule: used to measure buildings, furniture, etc.
5.Vernier caliper: used to measure relatively small things.
6.Level: The level is a measuring instrument that uses the principle of liquid level to directly display the angular displacement with a level bubble to measure the relative horizontal position, vertical position, and tilt position of the measured surface.
