John Sterling Corporation has been a leader in designing and manufacturing quality hardware since 1931. They are committed to the continuous improvement in all aspects of quality, productivity, efficiency and service to their customers. This 5-bar window guard is perfect for homes with young children or any home in need of a little added security. It features an interior-mounted, pivoting design for easy cleaning and quick emergency exits. With an adjustable width and 3-1/2 inch bar spacing, it fits a number of different window sizes in your home while allowing you to breathe the fresh air care free.