The screen itself is really easy. Otherwise, one must always times the umbrella arm switch while walking in the rain. If the screen is not here. The one can carry virtually forever and even though it is quite large. The deduction of points there, because the closure sometimes has to turn, so he slipped into the intended slot. Consequently, it is now quite a few happen to me once that the screen jumps up again, because I did not pay attention and the lock is not engaged in retreat.