1/ I paid 25 € for the product and 18 € for transport to France for nothing!
It's a very bad copy of the MB05, it's not reliable, there is movement play everywhere, even when you block the 2 central wheels.

2/ The diameters of the 3 male rods are much smaller for the passage through the 3 orifices !!

3/ So there is no quality control of the product when it leaves the factory, and no control of the web merchant sixmm.com

4/ It's a shame, because at the beginning the communication was good with the seller on WhatsApp.

But when I reported the big problem, the seller asked me to contact Sixmm web support.

5/ I had already understood that it would be useless, because the seller did not have the will to do it directly with the support.

6/ The only positive point:
The package was very well prepared and protected!

I used a translator for this comment