2 Packs Window Safety Lock, Alieem Versatile Window Restrictor Self Adhesive for UPVC No Drilling Window, Refrigerator Lock with Key Child Pet Safety Cable Lock for Childproof\n\n-- \u3010Ensure Child Safety\u3011Alieem childproof window locks are designed to limit the opening distance of windows and doors, helping to reduce the risk of injury from falls. The window lock cords are 170 mm long , whilst allowing fresh air to circulate.\n-- \u3010Fits Most Windows\u3011 The upgraded window safety restrictors are more convenient with a size of 7.5 * 3.2 CM, suitable for most windows and can be used for wooden, PVC, and aluminum hinges windows, casement windows, and sliding windows.\n-- \u3010Convenient Installation\u3011Easy to install with strong self-adhesive properties and screw holes, providing double safety. Your windows are securely fastened and can only be opened with the key provided, preventing curious children or pets from opening them without adult supervision.\n-- \u3010Sturd.