2pcs Window Locks Set for UPVC Windows,Window Restrictor Locks for Children Security with Screws Keys

My son has autism and opens the front door, this device works and keeps him safe from running outside.Was easy to install without any drilling and has stayed securely attached for one week now.

these have made me feel more secure of leaving the front windows open while I’m out the back, they open just wide enough, very easy to install the quality seems to be very good and the price for security is well worth it…👍🏼

I purchased 2 and they seem to be very effective. I bought it to use on the windows on the top floor for my kids' safety. The installation is simple and straightforward. I used both the self-adhesive strips and then tightened them with the screws provided in the packaging for extra safety.There are a few drawbacks, however. One is that it can be unlocked with any key, and kids can learn to unlock them even using hairpins. The other is that if too much force is applied, it can break, though definitely not by kids but by an adult.Pros:1. Easy to install with both self-adhesive strips and screws.2. Comes with super adhesive taps, no need to drill in many cases.3. Good value for money.Cons:1. Not very strong; may break if too much force is applied.2. The keys are interchangeable and even can be unlocked with another key or pins.Personal tips:1. Always use the provided cleaning wipe to make sticker stick very strongly2. Use the wire as a guide to adjust the window opening width.3. Do not to over-tighten the screws as this could damage the plastic.Overall, despite a few limitations, these locks are useful and particularly helpful for non-child-related purposes and add an extra layer of security to our home. I am considering ordering more for the rest of our windows.I would recommend them with some caution regarding their strength and security for children.

These are great, feel safer opening windows on ground floor & knowing they can't be opened further for people to get in. Easily fitted & work a treat

This is my 3rd purchase of these as I have bought for friends. I have only used the self adhesive fixing, the pack I bought for myself over a year ago is still stuck. Very good product, that opens the window enough for good air flow. Not the height of sophistication in home security but I think any potential intruder would make enough noise trying to pry them off the window to wake the house!

Really easy to install, perfect functionally, opens a couple of inches for safety and will not let the child open it any further so really happy to have these for safety. Simple design built very well

Used to stop my cats from nose diving out the upstairs windows and they work great, just make sure you have the placement right the first time because, good god, the glue strong!

I thought they were great at first. They were easy to install. The sticky pads worked great and I thought all was well. That is until my daughter managed to unlock them using a hairpin. Took her seconds. So a waste of money for what I had intended to use them for.