Openable, designed for wall openings where there is no shading system or there is a shading system other than a shutter. Thanks to its reduced overall dimensions, the Simple line is suitable for installation even in the presence of obstacles (roller shutters, insect screens, etc.) or where wall thicknesses are limited. When opened, the panels rotate 180° and fold back behind the frame, becoming completely concealed from view from the inside. The perimeter frame is made of 20/10 pressed and bent sheet metal and can be fully customized to meet different installation requirements on site. The 40 mm deep drawn steel tubular profile minimizes overall dimensions while ensuring excellent rigidity of the security grille. The central strike plate is symmetrical and made with the same type of drawn tubular profile, ensuring a uniform aesthetic appearance while further reducing bulk.