Aongray Window Sash Jammer Locks Set,4 Pack Zinc Cast Alloy Window Anti-Theft Lock Buckle,Extra Security Locks for uPVC Window & Doors and Home Security

Amazing product. Stopped my autistic daughter throwing things out windows , keys , plates , money, her dinner. Easy too install I used drill as screwdriver setting. Took like 15 mins to do 8 windows. Keys all match all locks so it’s easy.

Great little lock very strong and well worth getting it’s a must for extra security. Definitely a great recommendation if looking for window or french doors

All as described.Works well and easy to fit.

These window sash locks are brilliant. Great price and great quality. Cheers guys

Got these as had to fit a new front door and wanted extra security.Self piloting screws come with each unit and a key. These units can be used for windows or doors .I'm fixing one to my front door to stop it being pulled open fully from outside as my door opens outways.Other three to windows round my home. sturdy but not impregnable but noisy to break in and slow down a house invador .

Does what it’s meant to perfectly

Solid locks and good value for money. Easy to fit and hold the window tight to the frame.

These sash jammer locks are easy to install and provide some added peace of mind for basic security. However, the build feels a bit lightweight and not very sturdy for stronger forced entry. Good for casual use, but don’t rely on them as your main security solution.