The "Installation" is very easy with measuring tape and a sharp knife. The material is sturdy but easy to cut. The disturbing draft is thus completely eliminated, and the sound is remarkable. Because you realize how much noise by a small gap penetrates ... Visually, it would certainly have gone too high. The fine Textigewebe could be made simple little wider, then the relatively ugly foam from the outside would have been barely visible. But OK, the product does what it should.