Adjustable window screens are screens that can be modified to fit different sizes of windows. They typically have adjustable sides or corners that can be pulled or pushed to make the screen larger or smaller, allowing them to fit snugly in a window frame. These screens are usually made of a lightweight, durable material such as fiberglass or aluminum, and they can be installed easily without the need for special tools or expertise. Adjustable window screens are a convenient and effective way to keep insects and other pests out of your home while allowing fresh air to circulate. They can be used in a variety of settings, including homes, offices, and other buildings.