My school supplies - ruler

The school supplies I want to introduce to you today are rulers.

My ruler is transparent, with a cute blue bear on it, playing hide-and-seek games with a bunch of blue stars. There is also a magnifying glass next to it that can zoom in on small objects. One side of the ruler is a straight line, engraved with a scale, a total of 15 cm to help me draw a straight line, the standard length; the other side is a wavy line, can help me make a mark.

This is my ruler, it brings a lot of convenience to my study, it is really a good helper!

Second grade: I am Rui Ge