Childproof Safety Window Restrictor: Our window restrictor is designed to limit window openings while maintaining a well-ventilated environment, providing maximum safety and long-lasting durability. It is perfect for parents, pet owners, and those looking to prevent windows from opening during strong winds Adjustable Window Safety Lock: Our window safety restrictor features 8 adjustable positions, allowing you to adjust the opening size to your needs. The maximum opening is about 10cm/4 inches. If you need to fully open the window, simply slide the restrictor out of the holder to release it Easy to Install: Our window restrictor can be installed without damaging the window or drilling holes. It comes with ultra-strong adhesive on the back, which reaches maximum strength after 72 hours. Important tip: For best adhesion, clean the surface before applying the restrictor and ensure you determine the installation direction and position first Easy to Use: Our window restrictor can be easily unlocked at any time. The 360-degree rotating arm allows for flexible adjustment of angle and opening size. Simply press the two buttons to adjust the arm according to the window opening requirement Wide Application: The adjustable window restrictor can secure hazardous areas such as windows, sliding doors, and balconies, preventing babies and pets from falling while playing. It is suitable for most inward- and outward-opening windows, including UPVC, wooden, metal, plastic, and aluminum frames, Weight: 0.3527396192 pounds, Manufacturer: Newthinking