Very good quality and easy assembly with instructions that indicate where each screw goes along with its washer and nut (there are screws of two different lengths). You will also need polygonal tools (such as wrenches) to tighten the screws while holding the nuts on the other side (possibly with pliers). When the two pieces are assembled, they can be easily transported together, placing them on the shoulder. They take up little space (about half a meter in width) if you rest the top bars by inserting their bases into each other.
It is also a sturdy construction, with a good height for exercises and a good price for the set. On the lower bar, you can also do push-ups.
I use it for leg swings (after standing tall with my arms) by doing backward and forward movements (thus exercising the abs, back muscles, and shoulders). I think these exercises are very beneficial for my waist. Just be careful not to gain momentum during the swings, lose your grip, and fall backward. Even just standing still with your arms and legs together in front of you for a few seconds exercises the abs and helps the vertebrae in the spinal column move away from each other as it pulls the weight of the legs while in the air. So, I think it relieves the nerves and discs between the vertebrae. Of course, it is also perfect for dips for the triceps. I have them indoors, but they also work in an outdoor space, in the yard, I think.
Personally, I am very satisfied with the price, quality, sturdiness, and everything. They do the job for which I bought them.

Good build quality, the price is reasonable, easy assembly, has a large base and is stable in its use, overall recommended for a home fitness instrument.