FLYZZZ Adjustable Sliding Window Screen, 2 Ways Aluminum Frame Expendable Window Screen (15.74 ''h x21-40''w) or Convert to Vertical (21.65"h x 15-28"w), B

These little window screens don't seem as common or as easy to find as they used to be, but they are very useful not only for screenless windows but also as a kind of secondary screen to protect the original window screen from being torn by cats. I could not find a screen for the smaller of my windows - but this fits just right and has cushioning around the edges to protect them. It seems to be of good quality.

So I rent my house and when I moved in 3 major windows had no screens. Both windows in the living room and one in my bedroom. Living room gets afternoon sun, and with only no window that opens it getsvery warm. Same for upstairs, it gets very hot up there in the summer without a cross breeze. I prefer windows open most of the spring and summer, since I live in Michigan, not the South.Landlord said if I want screens, I need to buy them. Huh. Ok. Priced it out- many dollars. Many dollars. Windows aren't standard size. If I owned this house I would've spent the money but I don't. So I looked around and found these. Got them a week ago and omg. Its so much cooler in here. They installed so easily, the major issue I had was getting my silly windows and old rusty storm glass open. These are great, they adjusted to my old windows size, they don't move once insalled, and if I move out I can take these with me to my new house. Perfect!

Easy to install. Thick felt surround ensures no gaps. Fine mesh stops rain getting through. Solid build. Kept out all flies after install. But let in cool air during hot nights. Great investment.

Really good 2 pack of adjustable screens. What I like best is how there is a fluffy edge along all sides which means that when the window is lowered on to it, there is a really good seal which protects from bugs getting in.

Good to keep my room cool or to let in some fresh air during the hot late spring and summers. I never really saw the need for window screens until I got kittens... living on the first story as I do, I had to invest in screens the second I brought my two 9 week old buggers home. I did a lot of research and thought I'd need something with really strong, metal wiring to keep them from fighting through, but as it turns out? These are perfectly fine.I got them as a temporary solution as I was trying to figure out how to build and proper install more permanent window screens. My kittens have respected these screens since the start though, and they generally have no desire to tear through or claw at them. I have really sweet kittens (now almost cats. I've had them over half a year now with these screens). I'd get one of these screens and test them with a single window whilst keeping an eye on your cat to see if they'll behave around it. I'm perfectly confident in my ability to leave my kittens with these in my open windows for hours.For installation, easy. Pull these open to the length of your windows, fit them behind the outer grooves on the sides of the window, pull window down to snugly hold the screen in place. My window is much longer than the shortest screen, but I just bought that and carefully snapped out the black pieces that hold the screens in place, reconfigured the screens to open the other way round, then snapped them into place again. Just be careful not to pull on them too hard. I reckon a little too much force would break them.Perfect value for me. I get to have fresh air and breeze, my kittens get to look out the (usually closed and translucent) windows and enjoy the view, and there are no kittens falling out my window. Cool and pretty decently sturdy stuff for cheap. Don't think it gets better than these.