Received the base on 13/05/2020, silver color.

First impression is very good! Its base is something like reinforced plastic (good) with round non-slip pads underneath so it fits very well on the desk, the support rod is aluminum and the headphone jack is something like rubber with a very nice feel I would say.
Incredibly stable base! You can tell as soon as it touches the desk, the headphones sit perfectly and don't move whether you place them on or remove them. Excellent.

I am very satisfied with the purchase, clearly. I recommend it!

P.S. The base is more white in color than silver, while the rod is indeed silver in color.