Safety Lock: With this sliding window stopper lock for home and office, you can keep the window partially open or closed to avoid the hidden danger of children and pets climbing through the window. What's more, it deters thieves. High Quality Material: The sliding window lock is made of aluminum alloy with fine workmanship and high quality. The surface is carefully processed, beautiful and reusable. Portable: Our window locks are very small and easy to carry to other places where you need our window locks. Portable and easy to move from window to window or take with you. Easy Installation: Easy to install and remove, each window can be locked with the included hex key, keeping it secure the road. Versatile uses: sliding window locks can be easily applied to most environments, such as patio doors, sliding glass doors, sliding windows in hotels, residences , hospitals, schools and offices, providing a safe environment for children.