This kind of window screen hook loop tape, it is for a simple D.I.Y. screening that apply to the window to pretect the window keep the bugs out, it has simple structure and low cost, only a screening and a self adhesive hook tape, everyone can install by theirselves without tools and skills, like mosquito net for bed but it is a second line of the house defense, it really works. Besides 1.3*1.5m, you can custom the size to match mostly window.