STAY SAFE: Prevent windows and patio doors from accidentally opening due to gusts of wind with our casement window stops. A secure locking system for inward-opening tilt-and-turn windows that mounts directly to existing handles without the need for additional screws. ADJUST THE OPENING: Our window restrictors allow you to adjust the opening angle to lock the window in different positions and prevent accidental closing. Suitable for wooden or metal casement and sliding windows and is easy to install. PROTECT YOUR CHILDREN AND PETS: This window restrictor is an ideal safety device for children and cats thanks to its secure locking system. It offers a secure alternative to other window locks that are more complicated and difficult to install. Say goodbye to drafts: Our window stops prevent drafts and gusts of wind from blowing through your windows. It allows you to enjoy fresh air without sacrificing your comfort or safety. Wide range of uses: This window stopper is suitable for all standard casement or sliding windows, whether wooden or metal. It can also be used to adjust the window opening and prevent the window from accidentally closing.