ZEROplus Telescopic Friction Stay for Windows, All Metal restrictor, Silver/Gray, Z107/RUZT120SE

Fitted to new summerhouse doors which swung when open in the wind.Works well

It works as a restrictor. Fine. But the instructions are of very little help. I nearly sent it back, but eventually worked out how to place it, mainly thanks to a review comment and a photo in the advert. More noisy than expected when opening door. And looks more industrial than expected. But it works to restrict the door opening.

like for like replacement from 15 years ago. very strong, slick and alright price.

Brilliant tool to keep the door open as much as you want not as much the door wanted. Installed looks discreet and not obstructive.

Fitting is a bit of a mind bender, sorting out fixing position so as to get the right opening radius etc but that's not the units fault. It's a nice clean lines solution but not as good as the price is big.The description clearly says fixing screws are included - they are not. All you get are 2 grey finish short 4mm machine screws to fix the angle bracket to the pivot for outward opening.I'd buy it again if it were reasonably priced but now I've seen and fixed one, I wouldn't buy another at the current price.

The stay can be locked very easily so the door/window is ajar (as needed to keep our cat inside!) but it won't stop somebody getting in or out - it isn't a lock that will trap anybody.I found the instructions totally unhelpful and mysterious.Buy 4 decent 4mm self tapping screws (preferably stainless if used for outside windows) 2 out of the 4 supplied broke just gently screwing into the aluminium frame (into 3mm holes) - you'll need pliers to get them out.I needed to get the stay set up so the door would open to at most 100 degrees. I had to do some school trigonometry to work out all the screw positions so it'd work properly. The other approach would be to fix one end, then open the window/door to work out the best position for the other end - bearing in mind it must be able to shut too!

After wasting hours visiting various building suppliers I found this product on Amazon.l have to say the picture did look as if the fixing mouldings were plastic and the door that it was going to be installed on is susceptible to strong winds.when I received the arm and after further examination found the fixings to be metal castings .To sum up a good product at a very reasonable price delivered very promptly.

I bought the smallest size for a 40cm wide bathroom window, but didn’t install it. It would have fitted and I am sure it would have worked as intended - I cannot fault the product. But it just looked too heavy and industrial for such a small window. I bought an alternative which was much more slender and elegant.