Stay Safe: Prevent windows and patio doors from accidentally opening due to gusts of wind with our casement window restrictor. Safety locking system for inward opening tilt and turn windows, which installs directly on the existing handle without additional screws. Adjust the opening: Our window restrictor allows you to adjust the opening angle to lock the window at different positions and prevent accidental closing. Suitable for casement and sash windows, made of wood or metal, and is easy to install. Protect your children and pets: Thanks to its safety locking system, this window restrictor is ideal as a safety device for children and cats. It offers a safe alternative to other more complex and difficult to install window locks. Say goodbye to drafts: Our window restrictor prevents drafts and gusts of wind from slamming your windows. It allows you to enjoy fresh air without sacrificing your comfort or safety. Versatile use: This window restrictor is suitable for all normal casement or sash windows, whether wooden or metal. It can also be used to adjust the opening of windows and prevent them from accidentally closing. Note: The data are all measured manually, please allow an error of 1-3 cm due to differences in light and display, there may be some color differences, please refer to the actual item received.