Otherwise I can not sent to me the model is not much positive say:
Mechanically made inaccurate, the board does not fit exactly into the usual management or connecting strips and therefore drops off again.
However, the main problem is the poor quality of the spring contact strips - on the one hand, these are highly biased so that it is very difficult to use conventional components without bending the leads, on the other hand springs contacts after a single assembly not fully back again. This leads to unnecessary troubleshooting, for example because there is a loose connection.
I can no recommendation therefore, despite the low price.