Our security and insect screens are made of the highest quality materials available. Commercial windows uses Invisiguard stainless steel security system. Combining the strength of Marine Grade 316 Stainless Steel with the beauty and flexibility of Aluminium, Security Screens offer unparalleled clarity of vision with uncompromised security. Using the unique,  Patented* EGP Retention Method, you can be assured that the Stainless Steel Mesh will defy the most determined attack from both intruders and corrosion Tested and approved in accordance with Australian Standard AS5039.2005, you can be assured of having made the right choice when you choose. http://www.invisi-gard.com.au/