We bought the grille in order to flexibly prevent our 10th week old German Shepherd puppy scans the environment as they see fit. It is very stable metal and can be pivoted in both directions. In order to use it flexibly, and to not have to drill holes in the doors, it is only clamped in us. In addition I have screwed on 2 strips either side of the grille, the additional brackets, into which the screws push for tightening. Thus, then, with appropriate tension, already ensures sufficient stability. In addition, you could even fix the strips with double sided tape. Since the grid can span without these bars and the brackets (frame side), the grid can also be elsewhere times quickly mounted ("clamped") are, as long as it gives an occasion. Also, this stability is sufficient for our purposes. Those who want greater stability, would the frame-side brackets of plastic screw in the frame or in the wall and then clamp the door grille. This should then be sufficient for a larger dog, of course, not for one who can already jump over it. Compared to available at the hardware store "Baby swing protection grids" wooden me the value for money seems very good. Another note: Due to the design the lower rail is of course a small stumbling block. Did my big toe noticed ;-)!
