Invisible grilles, also known as stainless steel cables, are often used in high-rise HDBs, condos or even offices here in Singapore. The invisible grille was borne out of the need to enclose balconies and windows for the sake of the homeowners’ safety. Compared to the traditional grilles that appear to be bulky and overbearing, invisible grilles are hardly discernible from afar, blends seamlessly into any background and does not interfere with your interior design. Invisible grilles also don’t block wind or the view, thus it’s really worth the investment.