Ensure child safety: The child-safe window lock is designed to limit the opening distance of windows and doors to reduce the risk of injuries from falls. At the same time, it allows fresh air to flow. Choose Aosite child-safe window locks for peace of mind and a safer home environment. More practical: The upgraded window restrictor size is 7.5 * 3.2 CM, which is more suitable for the width of most windows and can be used for windows with wooden, PVC, and aluminum hinges, window frames, and sliding windows. Compared to the traditional screw window lock, the back is large enough for the adhesive to ensure safety, and can also be used with screws, giving you more choices. Easy to install: This window lock not only has strong adhesive properties, but also has screw holes. You can use the included self-drilling screws to install in two ways to ensure double security. With these simple locks, your windows are securely fastened and can only be opened with the included key, preventing curious children or pets from opening them without adult supervision. Robust and durable: Aosite effective safety window locks are perfect for high-rise apartments, homes with children or pets, or other situations where extra security is needed. The window locks are made of robust metal heads and high-strength steel cables, which are more durable. It has been tested to withstand a horizontal force of 100 kg. Wide application: These child safety locks can be used as refrigerator locks, toilet locks, cabinet locks, etc.; ideal for many windows, cabinets, drawers, and doors, preventing your little adventurer or cute pet from going to dangerous places. It can also be used to push down the toilet lid and seal the doors of microwave ovens, refrigerators, and other appliances.