It's like in real life: you have to find the right pole hole ... in this case, the hole in the rounded capsule, in which the support rod can be really locked. When you're so far, then, unfortunately, but shows that the product is not mature, because to be able to insert the support rod into the capsule, you have to unscrew them so far that the two capsule halves not correctly engaged. Does that mean that you have to pay attention when screwing on the right fit and the right engagement of the two halves in order not to damage them. Well, you can live with, and the product is now being expected very reasonably priced.
Much worse, I found that the shipment from China was lacking. The show was outside labeled incorrectly, so that they did not meet the import requirements and I therefore could not be delivered, but ended up at the nearest customs office. Something called probably unprofessional. Unnecessary and very annoying additional expense. What good is it because they have acquired a low-cost product ???