Game Pass guarantees, assembly instructions, however flawed, missing small parts

We have given this product to our daughter's 4th birthday, knowing that they can assemble the models shown only with help. The processing of each item is good, you can feel free screws and build.

But when we wanted to build the assembly instructions, there was a neat disappointment. The instructions of the most impressive models (crane and wind turbine) are not well thought out in our opinion. For example, the bearing of the wind turbine is not turning provided but firmly screwed. When our daughter wanted to turn the wind turbine thrilled this did not work so. We then redesigned accordingly so that it is rotatably supported.
Likewise, the number of small parts is not sufficient for the construction of the crane. It lacks a minimum of 12 washers.

The manual itself is written understandable.

So if you do not attaches great importance to the accompanying instructions, this is a nice and creative toy.