【Ensure Child Safety】The window child safety lock is designed to limit the opening distance of windows and doors to reduce the risk of injury from falls. At the same time, it allows the flow of fresh air. Suitable for most hinged, sash and slider windows (horizontal or vertical) made of wood, PVC and aluminum.【Convenient Design】Just turn the key to open the lock. And designed with a 360° rotatable steel cable, so no matter which side or angle the plates are installed, the cable will swing and hang out of the way when unlocked.【Easy to Install】Our window limiter comes with equipped with self-adhesive glue on the mounting bracket, no-drill installation, easy and convenient to install. Once the cable is in place, the window opening distance is limited, using the key, the cable can be removed from one end and the window can be fully opened. You can also install it with the included screws for double security. 【Wide Application】Window limiter locks are widely used in split windows, hung windows, mobile night windows, sliding windows, etc. Suitable for homes, hospitals, schools, universities and offices, etc.【Safety and Peace of Mind】With our childproof window locks, you never have to worry about your child opening the window and falling. Prevent children from opening refrigerators, drawers, cabinets, dressing tables, so it is a good child safety lock.