Invisible Grill is an advanced grill system that provides security for your family especially children and it doesn't spoil the view It protects your children from falling over high places Prevent children from reaching out of the balcony or window. Prevent objects falling off from the balcony and highly recommended for high rise building It can be mainly installed in various areas such as yards roof-top terraces fencing for swimming pools stairways and screen or partition for offices Material used and Installation Invisible grill will provide wall plugs and powder coated aluminum tracks that are drilled into cement wall or ceiling and window frame 2.5mm or 3mm stainless steel 316 7*7 Grade nylon coated cables are then drawn horizontally across each cable track with 2 or 3 separation on individual preferences cables is then subsequently tightened and tensioned securely with special tools