1Enhanced Safety: The window safety lock is suitable for sliding window, ensuring your child's safety and preventing thieves from entering. 2Versatile Usage: The window security lock can be used to maintain window partially open or closed, enhancing ventilation and providing security for your child. Suitable for most vertical or horizontal sliding door and window. 3Easy Installation: The safety lock has a simple and effortless installation. No additional tools required, simply insert the key through the hole and secure it in place by turning the key. 4Reliable Material: Made of premium aluminum alloy, the sliding window lock is rust resistant and can be used for a long time, high strength and sturdy. 5Convenient Key Access: Each lock is equipped with a key for easy operation. Simply use the key to unlock and lock the window locks whenever needed. 10 xSliding Window Lock