useless, because not operational

I would very much like it returned, but I let it stand in the sealed package until I wanted to actually install and there was unfortunately withdrawal period to. one of the spin observable (since it is not so screwed, what was important to me because we live in rented accommodation) fixation points is apparently a Monday screw thread because you fit into any of the openings. fixed points and the grid to only three, can not be used ... if that was not, perhaps it would be so corrupt as to the opening of the door does not look reassuring.