4 Pack Sliding Door Security Bar Window Security Bars Adjustable Sliding Glass Door Lock Bars with Rubber Tips 9.8-15.7 Inch Tension Rods 0.7 Inch in Diameter Window Safety Lock Bar for Door Bathroom

As described & worked perfectly for what I needed I

good for what i needed them for but not the most sturdy

Works great!

I have your average American home sized windows & doors. These had to have been made originally for porthole sized windows! Will be returning as they do not extend long enough to function.

These are not "security bars" at all they are light duty hanger rods at best. I wanted to maintain pressure on a window to ensure weather sealing and these were unable to maintain enough pressure for that simple application. Even a child would not have much trouble pushing hard enough for these rods to simply wind back into a smaller size. I would not buy these if you have any desire to secure any window or door.

These keep my kids from escaping our basement. They work as intended and they haven’t figured out how to wiggle them out of the windowsill yet. They were easy to install.

I used these to help hold the window down with the window air condtioner in it, feel very flimsy and they stop tightening after a certain point, its not tight fit and could knock it down with little force

These are working nicely; installation was a few seconds.