Kamoi Jack One-Two-Three PAT426911 Building Materials

I am unsure if all parts are present, so please be sure to check the images yourself and purchase only if you are satisfied!

This was found in my parents' storage.

As I am an amateur, I do not know the names or how to use it, but it was in a box labeled Kamoi Jack One-Two-Three PAT426911.
It is an old item and has rust, dust, dirt, etc.
As I am an amateur, I do not know how to use it, so I am unsure if there are any missing parts, but it includes three poles of about 1 meter, two parts with feet, and one metal fitting with black ball-shaped objects at both ends.
There is no instruction manual.
Please only purchase if you are okay with this.

If you are concerned, please refrain from purchasing!
Please check the images and only purchase if you are okay with this.

I was unsure where to measure for the size, so I have taken random photos.

I will answer questions to the best of my knowledge, so please feel free to ask if you have any concerns.

The cardboard box is quite dirty, but I will use it for shipping. Depending on the situation, it may be shipped in a simple package wrapped in fabric scraps or a used blue tarp! Please refrain from purchasing if you are concerned about the amount of waste generated!