Our Window Widget limits the amount your windows will open to keep curious kids safe from window falls. It's the perfect solution for childproofing your home. It attaches in minutes... no tools, no screws, no holes and no mechanical skills needed. It adjusts on the 7 3/4 inch Hook-and-Loop Fastenerso you can place the Window Widget at the correct location to limit your window from opening beyond a safe height. Made of super-strong, high quality plastic for exceptional durability. Comes with heavy-duty adhesive backed Hook-and-Loop Fastener. Mounts instantly and securely to your window frame. For emergency pull the Window Widget off the Hook-and-Loop Fastener.