Fenestrelle Expandable Window Screen - Horizontal (38cm H x 53cm-101cm W), Pack of 2 Medium Screens. Keeps Out Bugs. Perfect Replacement Screen for Windows. Insect, Mosquito, Fly Screens for Windows

Great product. When my son and family needed to live with me for a few weeks in my first floor apartment, I was worried about my toddler granddaughter 'accidentally' nudging their cat out of my open sash windows! I bought one pack of these to try and was so pleased have bought a second pack. Well made and fit just fine in my grade 2 listed sash windows (no gaps anywhere contrary to other reviews) They are adjustable width ways but consider the fixed height measurement of the size you choose as this determines how 'open' the window will be. (I bought two different sizes for versatility of choice) They are sturdy as the sash window sits on top of them wedging them in place. The family have moved out to their new home now but I will continue to use as no bugs, no chance of a wild bird flying in and no chance of flying ants colonising in my lounge! Not cheap but well worth it in my view.

Amazing item! We originally got a screen which stuck around the frame with magnets but it didn't work as the window slides up. This item however, works very well. It slots into the frame and is very sturdy - even with four curious indoor cats, it has allowed us to have the window open and keep them from escaping! The mesh is strong as well, keeping any creepy crawlies out while letting fresh air in! Brilliant how you get two in the pack as well! Would definitely recommend.

These window screen are so easy to use. I have had to make my own in the past ( very fiddly) Now I have sash windows it a breeze open the window pop them in and slide to fit, so simple. I will be buying more for some other windows very pleased…..

Absolutely amazing, will keep the bugs out and fresh air in lol highly recommended, will definitely be ordering more…. Will be great for summer…

Good item. Decent quality. Not super sturdy. Delivered quickly. Does what it says on the box. But crazily overpriced. I think these should be selling for about £20-30 max based on the quality and construction. £52 seems totally overpriced for how basic they are and the materials.

Works really well for keeping the flies and other bugs out when I air out my flat! Such a clever device and I wish they created more for different types of windows. I’ve been using mine for over six months now and they still look new. Very good quality and would highly recommend.

My windows open outward. But I saw on another post, but someone had turned the frame vertically. So I bought 2 of these to fit the width of the window. The main reason was to keep out a neighbour's cat who was coming in and marking. Satisfying that I can now with confidence leave my windows open. This product is very easy and quick to install. And feels robust would highly recommend Would be great if the company would add more sizes to fit different windows.

Perfect for sash windows. So good I bought another immediately.