Now I have the part of a few weeks and still brooding over what could be the adapter plate (mind you "inclusive") well. Maybe there's the dish meant by the screw in the center, with which you can screw alternately different cameras. In short, this part can be anything except change the direction. And what do you mean "inclusive"? Is there anything to it, what you would miss otherwise?
Unfortunately I could from the product description does not realize that the thread below - has thread to be screwed onto a tripod - - no 3/8 "but only a 1/4". Bolting to a usable tripod - nil, because they have 3/8 "thread.
I have made a virtue out of necessity and a good piece at least photographed:
[...]
Now the ball head on the shelf gathering dust. Pity about's money.
