I say first of all, makes the product, what it should. A window grills keep up. If the window grid but also to provide some protection against burglary, please see the product image in the magnification. Here is not great welded anything, but the square tube is kept more or less of the four "pimples" (as well as the zinc plating '). After I put the test as window bars in the square tube and then wanted to pull it out again, broke this off without major trauma and remained on grid sitting. So you need only a little bit with a hammer at the grating tap, then you could certainly break out there without much effort. Then the backup asterisk against unscrewing avail not much. Too Bad.
