Let me start by saying these window locks are a game-changer! As a parent of two curious toddlers and a mischievous cat, I was constantly worried about open windows. The EUDEMON safety locks solved that problem effortlessly.

The installation was super simple - just peel and stick the adhesive tape. Pro tip: wait 24 hours for maximum hold like the instructions suggest. I made the mistake of testing it too soon on one window and had to reapply (totally my fault!).

What I love most is the adjustable feature. The two opening lengths (7.5cm and 12cm) let me control exactly how much ventilation we get while keeping kids safe. Our master bedroom window stays at 12cm for airflow, while the kids' room is set to minimum opening.

The locking mechanism works like magic - closes automatically when you shut the window, but requires pressing two buttons simultaneously to open. My 4-year-old hasn't figured it out yet (thank goodness!), but it's easy enough for adults to operate with one hand while holding a baby.

Bonus discovery: These work amazingly for pet owners too! Our cat used to nudge windows open with her nose, but can't budge these locks at all. The white color blends nicely with our UPVC frames, making them practically invisible.

The only minor drawback? If you have very thick window frames (over 3cm), you might need to use the included screws instead of just the adhesive. But honestly, that's being picky - for under $20 for two locks, this is absolute peace of mind in a package!