Sonniboy sun protection system specifically designed for Audi A4 B6/B7 Avant models produced between 2001 and 2008. This complete set offers comprehensive window protection with custom-fit sun protection films that block sunlight while maintaining visibility from the inside. The system features a one-piece, three-dimensional rear window cover, eliminating the need for multiple parts and ensuring full coverage of the entire window area. Made from durable, perforated polyester fabric that effectively blocks UV radiation, prevents interior heating, and protects vehicle upholstery from sun damage. The woven wire structure provides privacy from the outside while allowing clear visibility from the inside. The high-quality, flexible steel wire frames are coated with fire-resistant polyester fabric, making the covers lightweight and robust. The material is dirt and moisture-resistant for easy cleaning and maintenance. Installation takes only a few minutes with the included clips, which securely attach between the window pillars. The set covers all windows from the B-pillar onward. The design allows for driving with open windows while providing insect protection and privacy. This offers an effective alternative to more expensive tint films or tinted windows. The black finish provides a discreet, professional appearance that harmoniously blends into the vehicle's interior. Each set includes comprehensive installation instructions for straightforward setup.