Ensure Child Safety: The childproof window lock is designed to restrict the opening distance of windows and doors to help reduce the risk of injury from falls. It allows fresh air flow while providing added security. Choose Aosite child safety window locks for peace of mind and a safer home environment.More Convenient: The upgraded window safety restrictor measures 7.5 x 3.2 cm, making it suitable for most window types, including wooden, PVC, and aluminum hinged windows, casement windows, and sliding windows. Compared to traditional screw window locks, the larger back plate provides ample surface area for secure adhesive bonding and can also be installed with screws, offering added flexibility and security.Easy to Install: This window lock features strong self-adhesive properties and includes screw holes for optional screw installation. Use the included self-tapping screws for double security. These easy-to-use locks securely fasten windows and can only be opened with the provided key, preventing children or pets from opening them without adult supervision.Sturdy and Durable: Aosite safety window locks are ideal for high-rise apartments, homes with children or pets, or any situation requiring extra security. The window safety catches are constructed with durable metal heads and high-tension steel cables, tested to withstand a horizontal force of 100 kg.Wide Applications: These safety locks can also be used on cabinets, drawers, and doors to prevent access by young children or pets. They can help secure refrigerator doors, toilet lids, microwaves, and other household appliances, helping keep little explorers and pets away from potentially dangerous areas.