I recently installed these aluminum thumb-turn window locks, and they’ve been a game-changer for my home security. The no-drill design meant I could set them up in minutes—no handyman skills required. The rubber lining is a thoughtful touch; it grips tightly without scratching my rental’s window frames.

I tested them on my sliding patio door first. Even with forceful tugs, the lock held firm—no budging! The vinyl insert adds extra grip, and the thumb screws (tightened with pliers for maximum security) make it impossible for intruders—or curious kids—to slide the window open. Pro tip: Use two locks per window for unbeatable stability.

What surprised me most? Their versatility. I’ve used them to secure my window AC unit and even as a temporary fix for a loose camper window. They’re discreet but sturdy, blending into the frame while doing their job flawlessly.

The only hiccup? One lock’s rubber buffer fell out during installation, but it still worked perfectly without it. For under $20, this 4-pack delivers peace of mind that’s worth every penny—especially after my neighbor’s break-in scare.