FLY HAWK Window Security Bar for House Apartment Heavy Duty, Adjustable Sliding Door Lock Bar, 18-51 inch, Matte White

It was very easy to install you can make so many different ways to fit I would definitely recommend this, can be used on windows and doors, it can be used in vertical windows as long as you have the vertical window where the top does not come down just the bottom lifts up!! Its perfect for my kitchen window that I wasn't able to get the other kind of lock onto, I live in a really terrible neighborhood, it's a nightmare, I have locks on all my windows special locks on my doors and windows and I couldn't find anything to lock my kitchen window until I've seen this, in fact Walmart sells a bunch of items to fortify your home!! Definitely recommend this item, remember it's for horizontal windows and doors UNLESS YOU HAVE THE VERTICAL WINDOWS THAT Don't OPEN FROM THE TOP!!! If both the top and bottom of you windows can move this isn't the right product for you (hope that helps)

Works perfect for my big sliding door as it comes with 2 extensions, one is a longer extension and the other is a short one.

I made this purchase so that I will feel safe on a vacation next month. So I have not actually used the security bar yet. Nevertheless, I am very impressed that the security bar is (a) very solidly constructed and (b) easy to put completely together for whatever width is needed. I am not a mechanical person, but the directions were very clear, and I was able to get the security bar working the way it is supposed to work.

Easy to assemble; effective security tool.

It was exactly what I was looking for to use on my back sliding door when we are out of town for a little added peace of mind.

Great purchase Works great

Works good for my sliding door

extremely easy to assemble. The base screw is adjustable to ensure a tight fit. The cap, and base screw are just soft enough to not mar the door or frame.

hard to put together and not as expected. did not fit longer window.

Cheap low quality. May be good for window but not good for a patio sliding door. Bent very easily. Not worth the purchase. Invest in a higher quality product.