SAFELON Adjustable Window Gap Size Baby Safety Window Restrictor, Childproof Window Safety Lock for Kids&Pets,Easy to Install and Use (2 Pcs, White)

These are great value for money, especially through Amazon prime day! The quality seems really good with the adhesive stickers being quite strong. It was really easy to install and fits excellently. I’m in a first floor property so needed something to restrict my indoor cats getting out of the windows and injuring themselves. Very happy and will be ordering more.

Great product and so easy to fit.Keeps my cat safe .

As you see from the photos, these open just enough to let in fresh air, but too small for even a cat to squeeze through (although my partner keeps reminding me that cats can squeeze through narrower spaces than you think).Definitely child proof, because to undo them requires 3 hands as far as I'm concerned. Very finicky.You can also leave them undone, so they are not clipped in at all which means you can make the window open wider.All in all easy to install and seems to be good quality.Honestly, and perhaps unfairly, the reason for the 4 stars is simply how difficult they are to undo, which if you have a child is probably exactly what you are after.

I bought this to keep my cat from escaping, they work well, easy to fitAnd the feline cat escapeI like the arms, as im visually impaired I can feel how wide I want it to be, no errors.

We have one of these locks on all of our upstairs windows for child safety. They're really easy to install and have lasted for years without any problems. As an adult, They're simple to unlock if you need to unlock the window fully, but can't be unlocked by children. I'd highly recommend them.

I bought these to stop my indoor-only cats from flinging themselves out of the windows and they work fine for that. They stop my windows from opening more than a couple of inches, and make it impossible for my beautiful but dim cats to force their way out. So yes, they definitely work. They stick onto the UPVC frames very firmly too, but I suspect if your frames are painted or wooden you might not get the same firm stick.However, they are quite tricky to disengage once they're installed. I've found it almost impossible to uncouple them and open the windows fully now they're in place. I won't replace them unless they break (let's not throw plastic away unless we have to), but I have to say that the kind which rely on a chain instead of the plastic arm which these ones have are much easier to disengage and adjust. I bought a couple of those too, and much prefer them to these.

Just what I needed to stop my window flying open in a strong breeze.Quick and easy to fit, make sure you know where to put it first because once it's on its stuck there fast... Nothing is gonna budge it it's that solid.Can be a bit fiddly to open/close if you have any arthritic disability.So for a bit of breezecand peace of mind it's good value (comes in pack of two) for money.

Was looking for something that kept our family's young children safe when they came to stay without damaging our new window frames.These do the job perfectly and when we haven't got children here they can be altered so we can have the windows open fully.Easy to fit and more robust than I was expecting them to be.