Window screen with an aluminum frame. It features a fiberglass mesh resistant to UV radiation and weather conditions. It also has sealing brushes on each side that improve the fit on the window frame and prevent even the smallest insects from passing through. 

The screen and frame can be cut to the desired size according to your needs and can be installed without drilling or using screws, as it easily attaches to the guides. It is suitable for keeping flying insects out of your space without using poisonous sprays or other harsh chemicals.