Child safetyCompatible The safety locks effectively limit the opening distance of Windows and doors to help reduce the risk of injury from falls.At the same time,our lock is a safe way to keeping your privacy, suitable for many kind of materials, such as upvc, wood, aluminum and metal.You can use it without any worry. Premium Quality You can trust in the premium quality of our materials, which are safe and non-toxic. The steel wire rope is 3mm thick for added strength.Outer protective rubber coat, no rust, long life. Moreover, its surface is covered with high-quality plastic to prevent scratches, and it is not easy to be broken. Flexible to InstallTwo installation methods: drilling or self-adhesive.These locks reserve two screw holes and are equipped with screws.The back of locks are strong adhesive, which ensures it is not easy to fall off. Just clean the surface before use, remove the protective paper, and then paste it on the surface.These locks are easy to install and can be done by anyone. VentilationThe window locks rope is 173mm long to allow fresh air to circulate,and can be opened fully after the cable being removed for one end by using the Key. Wide Application These locks are suitable for many cabinets, drawers, refrigerators and other furniture. The simple generous exterior is appropriate for homes, hospitals, schools, universities and offices to provide you with a safe environment.