Enhance the safety and security of your property with this key locking window restrictor. Designed to limit window opening, it helps prevent accidental falls and unauthorized access, while also aiding compliance with safety regulations in various settings like homes, schools, hospitals, and commercial buildings. The restrictor features a robust 20cm steel cable that can withstand forces over 1000N and is resistant to cutting for added security. Its key-operated locking mechanism allows for easy and secure full window opening when needed for ventilation or emergency exits. This versatile lock is compatible with uPVC, aluminium, wooden, and metal window profiles, making it suitable for a wide range of applications. The window can be opened up to 100mm, providing adequate ventilation while ensuring child safety and deterring unauthorized entry. The restrictor comes with multi-substrate fixing screws for straightforward installation. XFORT is committed to making DIY accessible with quality products and expert guidance.