So the supplied Velcro was hard to peel off the backing paper, a single knibbelei and also enough ... so I bought Tesa replacement ligament for mosquito nets at the hardware store original. This went flawlessly! However, the appearance is more of getting used to, it looks a bit like this as the window was now plastered with cobwebs ... view outside is very limited, therefore probably really only something for the bedroom ... when it is fulfilled the purpose in order.