Toddleroo by North States Sliding Window & Door Wedge Locks | Limits The Space That Windows and Sliding Doors can Open | No Tools Required | Baby proofing with Confidence (4-Pack, White)

Easy to install and very difficult to force the window open. Bought these for a couple of old 1940's windows that need to be replaced. Of course, like an idiot, I locked myself out of the house the day after I put them in. So I had to force the window up and over them to open it far enough to throw my kid through the window to unlock the door. I was impressed with how much force I actually had to use to break into my own house and to their credit, these things didn't break off. Great value for the money and really easy to install. Plus they double as window holders when you want to keep an old loose window open.

I bought this for my child’s room. It works!He is not able to open the window.

Easy install look just like advertised, only 4 stars because my 3 year old found them and had them taken off the window within minutes of seeing them

We've ordered these for each house we've lived in. I love that they are easy to add to the window and look discrete. I love the price for the purpose of these. We have opened the window pretty hard to make sure they stay in place and they do. I love that my kids don't even notice they are there so they don't mess with them. I do wish that they were adjustable so we could open the window more sometimes, but overall I feel safer with my kids being on the second floor of our house with these on the window.

I have twins toddlers, they must be good escape artists. These did not work, they could still get the window all the way open. They don't stick hard enough and pop off when the window is unlocked. I even installed two of them, one at the top and one at the bottom as a backup. No luck.

Easy to use, keep home safe, stick well to metal and plastic.

I was hoping to find protection for my two year old son from opening the windows for his safety but the window still opened right over it. Unfortunately we had to send it back.

Toddler ripped these off the window in seconds. Easy to apply but did not serve its purpose. Would not buy again