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

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.

These are working nicely; installation was a few seconds.

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

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.

As described & worked perfectly for what I needed I

Works great!

I bought the size for patio doors, but they didn't work on my common size patio doors..way too short.

Too small and too short of a length for regular windows.