General description This product is designed to enhance the security of horizontal sliding windows and doors. It prevents break-ins by locking the window when it is ajar, allowing for air circulation while keeping your child safe. The locks are suitable for various surfaces, including wooden, glass, plastic, and metal, making them versatile for different applications. Technical specifications Material: Metal + Rubber Color: Black Dimensions: Approx. 6 x 4 x 3.5 cm Package Weight: Approx. 78 g Package Contents: 2 x Door and Window Locks Installation Lock the window before installing this product. Insert the rod into a groove to secure it inside the sash. Turn the handwheel clockwise until the product is locked. Mount the window frame at least 4 cm. Usage These locks limit and lock the opening of sliding doors and windows. They can be used to secure sliding doors, porches, closets, showers, storage rooms, and entertainment centers. Adjust the window locking system for safe and secure