Made from aluminum, this mobile louver panel is specially designed to integrate perfectly with the Cosa pergola structure. Its main advantage lies in its mobility: you can adjust the louver slats to suit your specific needs for light, ventilation and privacy. These louvers can be tilted or completely closed to partially or fully block sunlight, regulate air circulation and provide privacy without compromising the view outside. **This panel is compatible for installation on the 10 ft. or 13 ft. sides of the Cosa or Mirador II pergolas in sizes 10 x 10 ft. and 10 x 13 ft. .