【PACKAGE INCLUDES】: 1 x Window Latch, 1 x Mounting Hook, 4 x Screws.Unlike other window locks, our window locks snap directly into your original door handle and secure directly without additional mounting screws.【STURDY AND DURABLE】: Window tilt adjuster Length 4.2 inches, high quality metal windproof hook with white coating to ensure it is rust-proof and durable. Window tilt adjusters are easy to install.Just need a simple screwdriver to screw in, easy to use, no drill needed to drill.【PROTECTION】: The bottom hung window bracket is used to block the opening angle of casement windows and balcony doors. The blockage can achieve the desired opening space, which is not possible with normal window hardware.The window latch also works as a cat and child safety feature for windows.【DURABILITY】: Window actuator rod that ensures the durability, consistency and longevity of the latch.The perfect protection against slamming or opening windows on windy days, increasing the comfort of using windows.Installing the lock is easy for you - after opening the sash, place your arm on the locking bolt and the window is locked in the selected opening angle.【SCOPE OF APPLICATION】: Window supports for sash or sash windows.Allows the locking of windows opened at different opening angles and prevents accidental slamming.Suitable for all standard PVC, wood or metal windows and doors.