X5 (Multi-Buy Deal) UPVC Window Restrictor Hook. Child Lock Restrictor Safety Catch

Little hard to apply but does the job, and is ok for building code in our town.

The media could not be loaded.  Bought because we have two young kittens stuck in a south facing room while introducing to our existing cat.These are cheap and cheerful, no instructions with but I probably wouldn't have read them anyway 🤣First tried fitting in our bathroom ... Soon discovered that when fitted as in the product pics you can't close the window. The problem for me is the swinging arm hits the outside of the window when you close, so it runs against that rather than the metal bobbin. That means that the bobbin then hits the finger part of the arm because the angle is all wrong.I got around this in the bathroom by fitting other way around in the top of the frame, so the arm is attached to the window and the bobbin pin to the frame. That way around there was enough clearance.The other windows though didn't have enough space to do that, so I just cut off the finger bits from the arms with an angle grinder ... You can see the result in the video ... Works fine but a bit of a faff.As mentioned in another review the screws are a bit longer than they need to be ... Do check the clearance or at least screw home tentatively.Also had to bend the arms with pliers to get the pieces to mate correctly.Given these are dead cheap they're reasonable value but don't necessarily expect a plug and play solution...

Once you work it out they are easy.

Some basic installation instructions would have been helpful but these restrictions are not too difficult to install.I fitted them to top hung openers (brand new Rehau uPVC framed windows) and once I figured out the best method I probably spent longer moving the ladder between windows than the actual fitting.Contrary to another reviewers advice to fit the stud first, I fitted the sprung arm first (to the casement). With that in place, there really was only one place for the stud to go, as the arm is then indicating the studs position - and that was the easy bit as the stud is fitted from inside.Your experience with non uPVC window, side openers or those without the “Euro slot” may be different.Although all my windows are the same, 4 of the five will need packers behind the stud to ensure the arm engages consistently - a job for next weekend. I noted (after the event) that another site sells a similar product complete with packers. It was be nice if this seller did that as many reviewers have found this an issue. Having said that, the supplied packers from the other site are of one size which may cause issues if clearance is tight.Whilst the material of these restrictors seems sturdy enough, I didn’t consider them a premium product and there is a far amount of slack in the sprung arm - this doesn’t help with engaging with the stud and hence the need for packers. The supplied screws do the job well despite them being fairly fine threaded - I would have expected a somewhat coarser thread. I piloted all holes before fitting the screws.It seems very easy to open the restrictors from the outside but as they are fitted to upstairs windows and it is unlikely we would leave the house with the main windows open, I don’t consider that a major issue.Overall, they work and should keep Building Control happy.I will also be recommending them to my brother-in-law who has a similar need with side hung windows.

I found them good but fitting is difficukt I've had to order packers as they aren't included in the delivery.I ordered right handed restrictors but the ones I received were left handed.Look at the sellers single restrictor page and you'll see the difference between left and right handed restrictors.

When used there were parts missing on each window except one and only by luck had a glazier have some to make the rest work in his store...Totally wasted the money and should have ordered elsewhere!