Window Locks, 10 Pack for Vertical and Horizontal Windows, Sliding Window Locks, Adjustable Aluminum Stoppers, No-Drill Install, Fits Tracks up to 3/16" Wide

Work great on my windows with window ac units and gives me peace of mind being able to lock them in place and keep out someone who may attempt getting in or stealing my units. Easy to use and install. Worth the price for 10 of them. Good design. I've used these style locks in the past and have always been happy with them.

High quality product for a great price! They are super easy to install, light weight, and very functional for thief prevention. You cannot open the window AT ALL when this is installed!! Size is ideal and it fits all the windows in my house. Package arrived fully sealed, instructions are on the back, and it has a black piece you insert under the metal part for extra precaution.So happy with my purchase!

This is a great product! You get a lot for your money and they are well made. I gave it only 4 Stars, because the padding that comes with the window locks, that's supposed to go in the window lock when you use it, falls off, making it very difficult to use. However, that wasn't a deal breaker for me and, again, you are getting a lot for your money! I was able to successfully use these on all my windows and now I feel much safer. I would buy these again and I recommend them to others.

Easy to use. Very light weight. The size was great. Can’t be seen easy. The removal is just as easy as putting in on the window.

These window locks are awesome for added security in the home. They’re easy to put on and easy to remove when needed. They add an extra layer of protection against intruders on top of the regular locks that windows already come with.

It works pretty decently. The rubber pieces that came with my package were a bit too short for my windows, but I made some on my own and it worked. When I received my package, the package was already opened. It came as if it had been used and the packaging to it was in bad condition. It makes me definitely feel safer about my windows though.

Product does not work. I attached it to my window just like it shows in the picture. I then tried to open the window while it was attached and the window slid right open. So I screwed the lock on tighter. The window still slid open when I tried to open it a second time. When I removed the lock I also noticed that the screw had screwed right through the rubber protector. This product does not work, do not buy it.

Items were incredibly easy to install and after multiple tests to pull windows up, they all held well. I feel much more comfortable in my home with these in place