【Package Contents】2 window catches, 2 mounting hooks, and 4 screws. Our window catches fit directly into your existing door handle and are attached without additional mounting screws. 【Robust and Durable】Window catch length: 10.5 cm. Windproof hook. Made of high-quality stainless steel with a white coating to ensure rust resistance and durability. 【Easy Installation】The window catches are easy to install. Each catch comes with 2 screws. You only need a simple screwdriver to screw them in. Easy to use; no drilling required. 【Protection】Also suitable as a safety lock for cats and children. Safety locking system to prevent windows from tilting and turning inwards. Safely ventilate the room and let in fresh air. [Area of Use] This PVC window catch is designed for casement or tilt-and-turn windows. It allows you to lock windows in four different opening angles and prevents accidental slamming. Compatible with all standard plastic, wood, or other types of windows and doors.