We ordered a window block. They installed it "on the dump". They made a curved visor, left foam seams sticking out. But most importantly, at the first downpour, the window flowed like a stream. In weather with strong gusty winds, all curtains on the balcony also shake. There is no high-quality tightness and insulation. Another charade of stuffing your own pockets. There is nothing else good there. I do not advise anyone to apply.