Simply attach the lock to the window frame and adjust it to the desired position. This lock is a must-have for any household looking to improve window safety. It is designed to provide an extra layer of security, ensuring that windows remain securely closed and preventing . The lock is easy to install and can be adjusted to fit various window types, including sliding windows and screen windows. Its robust construction ensures durability and performance, making it an essential addition to any home. With this lock, you can have peace of mind that your windows are secure and your loved ones are safe. Features -Color:Silver -Material:Stainless steel -Size:6.90X3.50X3.10cm/2.71X1.38X1.22in -Child safety: prevents children from accidentally opening windows, ensuring household safety and peace of mind for parents -Versatile use: suitable for household screen windows and sliding windows, making it easy to install and use in various window types -Fixed position: can secure the window in a fixed position, preventing accidental closure and enhancing safety -Antitheft: locks the window in a semiopen position to prevent breakins, providing an added layer of security for your home -Aesthetic design: features a simple design that does not compromise the aesthetic appeal of your windows, blending seamlessly with home decor Package list: 1pcs window stopper