Complete Window Lock Set with Accessories: Each package includes 2 sets of window restrictors for upvc windows, plus all mounting screws. This window lock kit is perfect for securing windows while protecting children and pets. Easy Installation with Pre-Drilled Holes: This set of window locks comes with all necessary hardware and pre-drilled holes, allowing fast and tool-free setup. Safeguard your home quickly with minimal effort. Adjustable Length for Safe Ventilation: The flexible chain design allows you to control how far the window opens, ensuring ventilation without compromising security. Ideal as a window restrictor for upvc or other window types. Durable Construction for Long-Lasting Protection: Crafted from a sturdy metal chain with high-quality white plastic housing, this window lock offers reliable durability. Comes with mounting screws for secure and long-lasting installation. Multi-Purpose Child & Pet Safety: These window locks child safety devices are versatile, suitable for windows, doors, cabinets, and fridges. Keep your home secure and provide peace of mind with this effective window stopper solution., Weight: 2.20462262E-5 pounds, Manufacturer: Zbssny