Personal opinion: The following row of parameters can be reversed. In this way, you can directly read as much as you want. No need to pull to the longest
Because the use scene of this ruler is mainly to draw a straight line of a certain length, the use of reading does violate the usage habit of the general ruler, but it can still be read. Pull the ruler all and push it back to measure the length of the straight line.
Personal opinion: The following row of parameters can be reversed. In this way, you can directly read as much as you want. No need to pull to the longest
This... 15~27 can't read
There is a problem with the video. The ruler at the back has changed and is inconsistent.
This design is very interesting
There is a pain point in finding the ruler, which is good
This design is very humanized ~