1、For Higher Safety: A must have window lock for partially opening windows to prevent children or pets from falling out. Allows you spend a peaceful time outdoors. Even if your child hits the window heavily on them, a child proof window lock will not damage the door. Window bolts are the ideal choice for protecting your home. 2、Adjustable Locks: No one will break into your house through the window. Open these windows installed on the window frame. These window locks are most suitable for protecting your family. These small anti theft window locks can prevent you from forgetting to fix and lock the windows when experiencing the peaceful and warm embrace of the wind. 3、Easy to Install: Key knob type, easy to tighten. The rail lock is clamped onto the rail of a sliding window or door. These window stops do not require any type of structural modification at all. Locking and window clips are convenient in emergency situations, rather than frequently searching for keys. Portable window locks are suitable for sliding glass windows, retractable screen windows, and terraces for windows in homes, offices, apartments, and rental homes. 4、Applicable Size: The opening of the window lock can only be fitted with a 3/16in guide rail, and the gap between the window guides should not exceed 0.187in. Make sure the wheelbase is less than this width. Perfect for sliding windows vertically or horizontally, place this type of window lock on the rail to prevent them from opening. Made of heavy duty aluminum, double finger screws ensure that these window stoppers can be clamped. 5、Reliable Window Locks: The windows protecting family safety. This window baffle comes in a pack of 10pcs and can be easily installed in just a few seconds. The sliding window locks will not break under strong impact. You can place multiple window locks simultaneously to improve the reliability of the windows.