ULTMATE IN SAFETY: As children grow they begin exploring, opening anything they can get their hands on, which is why Dreambaby created the Breezz-Guard. Install it to limit the window openings to a safe distance of 4 inches (10cm). SIMPLE OPERATION: The locking mechanism is simple, just insert the cable head and slide it into the locked position. When it’s time to clean the windows, it can be easily disengaged by an adult. BREATH OF FRESH AIR: If you love the crisp air on a fall morning or listening to the world come alive in the spring, you can continue indulging in these simple pleasures while keeping your child safer. WORKS ON ALL KINDS OF WINDOWS: Use the Breezz-Guard throughout your home on different windows of different sizes. It works for most aluminum, woo, and plastic hinged, sash, and sliding windows (including both horizontal and vertical) making it a top choice for any family.