High Quality:Made from high quality zinc alloy, the sash locks are hard wearing and corrosion resistant with a white paint finish, the sash locks are designed to provide extra security for your UPVC/PVC windows and doors and are built to last Tight fit: the back of the lock is designed with a screw-reinforced anti-clamping arm, which makes the base and the arm of the lock tightly combined, more durable, avoiding loosening, and giving your family a safer security Highly Secure: The limited openings in the window prevent children from getting through gaps or falling through. The child lock can be unlocked to allow access to the window in case of an emergency, and also provides security by keeping the air flowing and preventing children or pets from rushing outside. Easy to install: Simply fix the window lock to the window and use the screws to secure it, easy and convenient. Versatile: These sash locks are suitable for PVC-u and wood/composite windows and doors, such as room doors, windows, bathroom doors or balcony windows, and provide security for life., Weight: 1.10231131 pounds, Manufacturer: Crozgan