Adjustable Size: The window lock measures 60 x 200 mm, allowing you to adjust the length of the window restrictor chain to fit your desired opening size. No more worrying about controlling the opening distance; our window locks ensure good ventilation while keeping your baby and cats safely indoors. Reliable Material: Made from high-quality ABS material, these window restrictors are non-toxic, odorless, strong, and robust. The thickened chain can withstand 10 kg of gravity, making it strong and not easily broken. No need to worry about children pulling on the safety lock. Double Switch Design: This window lock features a double switch lock design; you must press both buttons simultaneously to open the window. Specifically designed to protect children and pets, these reliable window and door locks provide extra protection to keep your babies, pets, and family safe. Easy to Install: Our window locks are designed with a self-adhesive backing; simply peel off the adhesive tape on the back to attach and install easily. The strong adhesive ensures it won't easily fall off. The punch-free design won't damage your furniture. Perfectly lock out any hazards in your home, so you no longer need to worry about the safety of your children or pets around windows. Wide Application: The window locks are adjustable in length to fit a variety of furniture in your home. You can use them on cabinets, doors, drawers, refrigerators, windows, washing machines, balconies, etc. Protect your children and pets from danger and provide extra security for families.