I needed something to stop my 4 year old opening windows. At first I bought metal bars from Lowes. While worrying about installing them, I stumbled across these locks. It took 5 mins each window to install (with a regular screwdriver). The hardest thing was that the part of the window they are meant to be secured to was not flat... but with a bit of perseverance they are attached and pretty sturdy. They look much better than metal bars, and at least for now, my 4 year old hasn't worked them out.
Verified purchase: Yes | Condition: New
Only works for the right of the window in my case is a double window and the window on the left did not work because it is only one way, it is a shame because it is very good, it did not work for me. Solo funciona para la derecha de la ventana en mi caso es una ventana doble y la ventana de la izquierda no funciono porque queda contrario el seguro, es una pena porque está muy bueno, a mi no me funcionó.
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New
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