Package includes2 window stays, 2 mounting brackets, 4 screws. Our window latches can be inserted directly into your original door handle and can be fixed directly without additional mounting screws. Strong and durableWindow stay length 10.5 cm, hook cut -vent Made of high quality stainless steel with white coating to ensure it is rustproof and durable. Easy InstallationThe window locks are easy to install. Each screw comes with 2 screws, you only need a simple screwdriver to screw it in, easy to use, no need drill to drill. ProtectionAlso suitable as a security lock for cat and child, safety locking system to turn and tilt and turn inward opening windows. Ventilate the room safely and bring in fresh air. Scope of applicationThe pvc window ventilator for sash or sash windows. Locks open windows at 4 different opening angles and prevents accidental slamming. Suitable for all common windows and doors made of plastic, wood or metal.